Attempting to record with red record button prints error and doesn't work

Unity Engine
1

Stacktrace:

NullReferenceException: Object reference not set to an instance of an object
UnityEditor.EditorWindow.RefreshStylesAfterExternalEvent () (at C:/buildslave/unity/build/Editor/Mono/EditorWindow.cs:1055)
UnityEditor.AnimationMode.StartAnimationRecording () (at C:/buildslave/unity/build/Editor/Mono/Animation/AnimationMode.bindings.cs:125)
UnityEditor.Timeline.WindowState.set_recording (System.Boolean value) (at C:/Program Files/Unity/Hub/Editor/2019.2.9f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.timeline/Editor/State/WindowState.cs:209)
UnityEditor.Timeline.WindowState.ArmForRecord (UnityEngine.Timeline.TrackAsset track) (at C:/Program Files/Unity/Hub/Editor/2019.2.9f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.timeline/Editor/State/WindowState.cs:809)
UnityEditor.Timeline.TimelineTrackGUI.DrawRecordButton (UnityEngine.Rect rect, UnityEditor.Timeline.WindowState state) (at C:/Program Files/Unity/Hub/Editor/2019.2.9f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.timeline/Editor/treeview/TimelineTrackGUI.cs:640)
UnityEditor.Timeline.TimelineTrackGUI.DrawTrackHeader (UnityEngine.Rect trackHeaderRect, UnityEditor.Timeline.WindowState state) (at C:/Program Files/Unity/Hub/Editor/2019.2.9f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.timeline/Editor/treeview/TimelineTrackGUI.cs:480)
UnityEditor.Timeline.TimelineTrackGUI.Draw (UnityEngine.Rect headerRect, UnityEngine.Rect contentRect, UnityEditor.Timeline.WindowState state) (at C:/Program Files/Unity/Hub/Editor/2019.2.9f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.timeline/Editor/treeview/TimelineTrackGUI.cs:318)
UnityEditor.Timeline.TimelineTreeView.OnRowGUI (UnityEngine.Rect rowRect, UnityEditor.IMGUI.Controls.TreeViewItem item, System.Int32 row, System.Boolean selected, System.Boolean focused) (at C:/Program Files/Unity/Hub/Editor/2019.2.9f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.timeline/Editor/treeview/TimelineTreeView.cs:189)
UnityEditor.IMGUI.Controls.TreeViewController.DoItemGUI (UnityEditor.IMGUI.Controls.TreeViewItem item, System.Int32 row, System.Single rowWidth, System.Boolean hasFocus) (at C:/buildslave/unity/build/Editor/Mono/GUI/TreeView/TreeViewController.cs:493)
UnityEditor.IMGUI.Controls.TreeViewController.IterateVisibleItems (System.Int32 firstRow, System.Int32 numVisibleRows, System.Single rowWidth, System.Boolean hasFocus) (at C:/buildslave/unity/build/Editor/Mono/GUI/TreeView/TreeViewController.cs:691)
UnityEditor.IMGUI.Controls.TreeViewController.OnGUI (UnityEngine.Rect rect, System.Int32 keyboardControlID) (at C:/buildslave/unity/build/Editor/Mono/GUI/TreeView/TreeViewController.cs:594)
UnityEditor.Timeline.TimelineTreeViewGUI.OnGUI (UnityEngine.Rect rect) (at C:/Program Files/Unity/Hub/Editor/2019.2.9f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.timeline/Editor/treeview/TimelineTreeViewGUI.cs:151)
UnityEditor.Timeline.TimelineWindow.DrawTracksGUI (UnityEngine.Rect clientRect, UnityEditor.Timeline.TimelineModeGUIState trackState) (at C:/Program Files/Unity/Hub/Editor/2019.2.9f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.timeline/Editor/Window/TimelineWindow_TrackGui.cs:118)
UnityEditor.Timeline.TimelineWindow.TracksGUI (UnityEngine.Rect clientRect, UnityEditor.Timeline.WindowState state, UnityEditor.Timeline.TimelineModeGUIState trackState) (at C:/Program Files/Unity/Hub/Editor/2019.2.9f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.timeline/Editor/Window/TimelineWindow_TrackGui.cs:46)
UnityEditor.Timeline.TimelineWindow.TrackViewsGUI () (at C:/Program Files/Unity/Hub/Editor/2019.2.9f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.timeline/Editor/Window/TimelineWindow_Gui.cs:198)
UnityEditor.Timeline.TimelineWindow.SequencerGUI () (at C:/Program Files/Unity/Hub/Editor/2019.2.9f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.timeline/Editor/Window/TimelineWindow_Gui.cs:295)
UnityEditor.Timeline.TimelineWindow.DoLayout () (at C:/Program Files/Unity/Hub/Editor/2019.2.9f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.timeline/Editor/Window/TimelineWindow_Gui.cs:156)
UnityEditor.Timeline.TimelineWindow.OnGUI () (at C:/Program Files/Unity/Hub/Editor/2019.2.9f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.timeline/Editor/Window/TimelineWindow.cs:232)
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <599589bf4ce248909b8a14cbe4a2034e>:0)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <599589bf4ce248909b8a14cbe4a2034e>:0)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at <599589bf4ce248909b8a14cbe4a2034e>:0)
UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:359)
UnityEditor.HostView.Invoke (System.String methodName) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:353)
UnityEditor.HostView.InvokeOnGUI (UnityEngine.Rect onGUIPosition, UnityEngine.Rect viewRect) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:329)
UnityEditor.DockArea.DrawView (UnityEngine.Rect viewRect, UnityEngine.Rect dockAreaRect, System.Boolean floatingWindow, System.Boolean isBottomTab) (at C:/buildslave/unity/build/Editor/Mono/GUI/DockArea.cs:374)
UnityEditor.DockArea.OldOnGUI () (at C:/buildslave/unity/build/Editor/Mono/GUI/DockArea.cs:341)
UnityEngine.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 parentTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout, UnityEngine.Rect layoutSize) (at C:/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:298)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect) (at C:/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:483)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e) (at C:/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:466)
UnityEngine.UIElements.IMGUIContainer.HandleEvent (UnityEngine.UIElements.EventBase evt) (at C:/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:447)
UnityEngine.UIElements.MouseCaptureDispatchingStrategy.DispatchEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at C:/buildslave/unity/build/Modules/UIElements/Events/MouseCaptureDispatchingStrategy.cs:93)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at C:/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:280)
UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at C:/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:156)
UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at C:/buildslave/unity/build/Modules/UIElements/Panel.cs:190)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at C:/buildslave/unity/build/Modules/UIElements/UIElementsUtility.cs:255)
UnityEngine.UIElements.UIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at C:/buildslave/unity/build/Modules/UIElements/UIElementsUtility.cs:78)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at C:/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:179)

We also get an error with the record button in the animation window:

NullReferenceException: Object reference not set to an instance of an object
UnityEditor.EditorWindow.RefreshStylesAfterExternalEvent () (at C:/buildslave/unity/build/Editor/Mono/EditorWindow.cs:1055)
UnityEditor.AnimationMode.StartAnimationRecording () (at C:/buildslave/unity/build/Editor/Mono/Animation/AnimationMode.bindings.cs:125)
UnityEditor.Timeline.WindowState.set_recording (System.Boolean value) (at C:/Program Files/Unity/Hub/Editor/2019.2.9f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.timeline/Editor/State/WindowState.cs:209)
UnityEditor.Timeline.WindowState.ArmForRecord (UnityEngine.Timeline.TrackAsset track) (at C:/Program Files/Unity/Hub/Editor/2019.2.9f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.timeline/Editor/State/WindowState.cs:809)
UnityEditor.Timeline.TimelineWindowTimeControl.StartRecording (UnityEngine.Object targetObject) (at C:/Program Files/Unity/Hub/Editor/2019.2.9f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.timeline/Editor/Window/TimelineWindowTimeControl.cs:269)
UnityEditorInternal.AnimationWindowState.StartRecording () (at C:/buildslave/unity/build/Editor/Mono/Animation/AnimationWindow/AnimationWindowState.cs:569)
UnityEditor.AnimEditor.RecordButtonOnGUI () (at C:/buildslave/unity/build/Editor/Mono/Animation/AnimationWindow/AnimEditor.cs:1036)
UnityEditor.AnimEditor.PlayControlsOnGUI () (at C:/buildslave/unity/build/Editor/Mono/Animation/AnimationWindow/AnimEditor.cs:789)
UnityEditor.AnimEditor.OnAnimEditorGUI (UnityEditor.EditorWindow parent, UnityEngine.Rect position) (at C:/buildslave/unity/build/Editor/Mono/Animation/AnimationWindow/AnimEditor.cs:205)
UnityEditor.AnimationWindow.OnGUI () (at C:/buildslave/unity/build/Editor/Mono/Animation/AnimationWindow/AnimationWindow.cs:103)
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <599589bf4ce248909b8a14cbe4a2034e>:0)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <599589bf4ce248909b8a14cbe4a2034e>:0)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at <599589bf4ce248909b8a14cbe4a2034e>:0)
UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:359)
UnityEditor.HostView.Invoke (System.String methodName) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:353)
UnityEditor.HostView.InvokeOnGUI (UnityEngine.Rect onGUIPosition, UnityEngine.Rect viewRect) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:329)
UnityEditor.DockArea.DrawView (UnityEngine.Rect viewRect, UnityEngine.Rect dockAreaRect, System.Boolean floatingWindow, System.Boolean isBottomTab) (at C:/buildslave/unity/build/Editor/Mono/GUI/DockArea.cs:374)
UnityEditor.DockArea.OldOnGUI () (at C:/buildslave/unity/build/Editor/Mono/GUI/DockArea.cs:341)
UnityEngine.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 parentTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout, UnityEngine.Rect layoutSize) (at C:/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:298)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect) (at C:/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:483)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e) (at C:/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:466)
UnityEngine.UIElements.IMGUIContainer.HandleEvent (UnityEngine.UIElements.EventBase evt) (at C:/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:447)
UnityEngine.UIElements.MouseCaptureDispatchingStrategy.DispatchEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at C:/buildslave/unity/build/Modules/UIElements/Events/MouseCaptureDispatchingStrategy.cs:93)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at C:/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:280)
UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at C:/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:156)
UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at C:/buildslave/unity/build/Modules/UIElements/Panel.cs:190)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at C:/buildslave/unity/build/Modules/UIElements/UIElementsUtility.cs:255)
UnityEngine.UIElements.UIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at C:/buildslave/unity/build/Modules/UIElements/UIElementsUtility.cs:78)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at C:/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:179)
1 Like
2

Hey there, exactly the same happens for me. When I try to make a Dolly Camera with Track, I can’t seem to record.

3

With which Unity version? Also, what is the Timeline package version (you can get that information in the Package Manager window).

4

Unity 2019.2.9f1
Unity Timeline 1.1.0

5

Any more info on this? I got this on 2019.2.18f1 today with Timeline 1.1.0. First time trying out timeline so a little at a loss at where to go from here.

6

A simple restart of Unity seemed to fix it for now for me.

7

The error seems to be related to your current layout. As a workaround, if it happens again, try reverting your current layout.

11 Likes
8

Thanks. It worked for me.

2 Likes
9

thank you, it worked

1 Like
10

Resetting the layout works for a while, but the error resumes some arbitrary time later. We cant isolate it to a particular window being open or not.

Unity 2019.4.8f1
Timeline: 1.2.16 (verified)

Stack:

TimelineWindow_TrackGui.cs:177)
UnityEditor.Timeline.TimelineWindow.TracksGUI (UnityEngine.Rect clientRect, UnityEditor.Timeline.WindowState state, UnityEditor.Timeline.TimelineModeGUIState trackState) (at Library/PackageCache/com.unity.timeline@1.2.16/Editor/Window/TimelineWindow_TrackGui.cs:47)
UnityEditor.Timeline.TimelineWindow.TrackViewsGUI () (at Library/PackageCache/com.unity.timeline@1.2.16/Editor/Window/TimelineWindow_Gui.cs:198)
UnityEditor.Timeline.TimelineWindow.SequencerGUI () (at Library/PackageCache/com.unity.timeline@1.2.16/Editor/Window/TimelineWindow_Gui.cs:295)
UnityEditor.Timeline.TimelineWindow.DoLayout () (at Library/PackageCache/com.unity.timeline@1.2.16/Editor/Window/TimelineWindow_Gui.cs:156)
UnityEditor.Timeline.TimelineWindow.OnGUI () (at Library/PackageCache/com.unity.timeline@1.2.16/Editor/Window/TimelineWindow.cs:238)
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <fb001e01371b4adca20013e0ac763896>:0)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <fb001e01371b4adca20013e0ac763896>:0)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at <fb001e01371b4adca20013e0ac763896>:0)
UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) (at <d7545a46516941d4b2f2dec578cd41ee>:0)
UnityEditor.HostView.Invoke (System.String methodName) (at <d7545a46516941d4b2f2dec578cd41ee>:0)
UnityEditor.HostView.InvokeOnGUI (UnityEngine.Rect onGUIPosition, UnityEngine.Rect viewRect) (at <d7545a46516941d4b2f2dec578cd41ee>:0)
UnityEditor.DockArea.DrawView (UnityEngine.Rect viewRect, UnityEngine.Rect dockAreaRect) (at <d7545a46516941d4b2f2dec578cd41ee>:0)
UnityEditor.DockArea.OldOnGUI () (at <d7545a46516941d4b2f2dec578cd41ee>:0)
UnityEngine.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 parentTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout, UnityEngine.Rect layoutSize, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Boolean canAffectFocus) (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.IMGUIContainer.SendEventToIMGUI (UnityEngine.UIElements.EventBase evt, System.Boolean canAffectFocus) (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.IMGUIContainer.HandleEvent (UnityEngine.UIElements.EventBase evt) (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.CallbackEventHandler.HandleEventAtTargetPhase (UnityEngine.UIElements.EventBase evt) (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.MouseCaptureDispatchingStrategy.DispatchEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.EventDispatcher.ApplyDispatchingStrategies (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, System.Boolean imguiEventIsInitiallyUsed) (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEventQueue () (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.EventDispatcher.OpenGate () (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.EventDispatcherGate.Dispose () (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.UIElements.UIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <a9183b39766a483caf86aaa926f3554c>:0)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <819de1aa368e45faa4f78e26c97c62b0>:0)
11

This issue still exists in 2019.4.13f1 and Timeline package v1.2.17. I was able to resolve by resetting the editor layout.

12

This is a known issue - as of right now, the issue is currently marked as won’t fix. Resetting the layout is the recommend workaround - we have had a difficult time getting a consistent repro project.

If resetting the layout does not fix the issue, please submit a repro project so we can reopen the issue and deliver a fix.

13

Worked for me too, thanks a lot, I never would’ve guessed that!

14

Resetting layout worked for me. i have been looking around everywhere, but now it works

15

How is that bug marked as won’t fix ?
Resetting the layout works temporary, the bug come back after some time.

3 Likes
16

As stated above, we have not been able to reproduce the issue. If you have a repro case, (including layout files) please submit them.

17

Small update on this. Literally - a couple hours after posting 2 separate people at Unity starting experiencing this. So, we have a valid repro case and have reopened the bug.

With luck we will have a fix soon.

4 Likes
18

Still happening in Unity 2019.4.14.f1 (LTS as of today). Any fix yet?

19

The fix will be available in 2019.4.15f1.

1 Like
20

Can confirm setting your layout to default fixes the problem

1 Like