regression: UIT inspector spamming the console

when switching to IMGUI default inspector all this goes away
I would set IMGUI inspector on by default when this version is released

InvalidOperationException: The operation is not possible when moved past all properties (Next returned false)
UnityEditor.SerializedProperty.Verify (UnityEditor.SerializedProperty+VerifyFlags verifyFlags) (at <bc8f8c22c6b045fc8158410a4c7e9f32>:0)
UnityEditor.SerializedProperty.get_isArray () (at <bc8f8c22c6b045fc8158410a4c7e9f32>:0)
UnityEditor.PropertyHandler.IsNonStringArray (UnityEditor.SerializedProperty property) (at <bc8f8c22c6b045fc8158410a4c7e9f32>:0)
UnityEditor.PropertyHandler.UseReorderabelListControl (UnityEditor.SerializedProperty property) (at <bc8f8c22c6b045fc8158410a4c7e9f32>:0)
UnityEditor.EditorGUI.PropertyField (UnityEngine.Rect position, UnityEditor.SerializedProperty property, UnityEngine.GUIContent label) (at <bc8f8c22c6b045fc8158410a4c7e9f32>:0)
UnityEditor.EditorGUI.DoInspectorTitlebar (UnityEngine.Rect position, System.Int32 id, System.Boolean foldout, UnityEngine.Object[] targetObjs, UnityEditor.SerializedProperty enabledProperty, UnityEngine.GUIStyle baseStyle) (at <bc8f8c22c6b045fc8158410a4c7e9f32>:0)
UnityEditor.EditorGUI.InspectorTitlebar (UnityEngine.Rect position, System.Boolean foldout, UnityEditor.Editor editor) (at <bc8f8c22c6b045fc8158410a4c7e9f32>:0)
UnityEditor.EditorGUILayout.InspectorTitlebar (System.Boolean foldout, UnityEditor.Editor editor) (at <bc8f8c22c6b045fc8158410a4c7e9f32>:0)
UnityEditor.UIElements.EditorElement.DrawEditorSmallHeader (UnityEditor.Editor[] editors, UnityEngine.Object target, System.Boolean wasVisible) (at <bc8f8c22c6b045fc8158410a4c7e9f32>:0)
UnityEditor.UIElements.EditorElement.DrawEditorHeader (UnityEditor.Editor[] editors, UnityEngine.Object target, System.Boolean& wasVisible) (at <bc8f8c22c6b045fc8158410a4c7e9f32>:0)
UnityEditor.UIElements.EditorElement.HeaderOnGUI () (at <bc8f8c22c6b045fc8158410a4c7e9f32>: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 <b3b7056bcc0f4d7bbfa7e38095e34c9c>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect, System.Action onGUIHandler, System.Boolean canAffectFocus) (at <b3b7056bcc0f4d7bbfa7e38095e34c9c>:0)
UnityEngine.UIElements.IMGUIContainer.DoIMGUIRepaint () (at <b3b7056bcc0f4d7bbfa7e38095e34c9c>:0)
UnityEngine.UIElements.UIR.RenderChainCommand.ExecuteNonDrawMesh (UnityEngine.UIElements.UIR.DrawParams drawParams, System.Single pixelsPerPoint, System.Exception& immediateException) (at <b3b7056bcc0f4d7bbfa7e38095e34c9c>:0)
Rethrow as ImmediateModeException
UnityEngine.UIElements.UIR.RenderChain.Render () (at <b3b7056bcc0f4d7bbfa7e38095e34c9c>:0)
UnityEngine.UIElements.UIRRepaintUpdater.Update () (at <b3b7056bcc0f4d7bbfa7e38095e34c9c>:0)
UnityEngine.UIElements.VisualTreeUpdater.UpdateVisualTreePhase (UnityEngine.UIElements.VisualTreeUpdatePhase phase) (at <b3b7056bcc0f4d7bbfa7e38095e34c9c>:0)
UnityEngine.UIElements.Panel.UpdateForRepaint () (at <b3b7056bcc0f4d7bbfa7e38095e34c9c>:0)
UnityEngine.UIElements.Panel.Repaint (UnityEngine.Event e) (at <b3b7056bcc0f4d7bbfa7e38095e34c9c>:0)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at <b3b7056bcc0f4d7bbfa7e38095e34c9c>:0)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& eventHandled) (at <b3b7056bcc0f4d7bbfa7e38095e34c9c>:0)
UnityEngine.UIElements.UIEventRegistration.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <b3b7056bcc0f4d7bbfa7e38095e34c9c>:0)
UnityEngine.UIElements.UIEventRegistration+<>c.<.cctor>b__1_2 (System.Int32 i, System.IntPtr ptr) (at <b3b7056bcc0f4d7bbfa7e38095e34c9c>:0)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& result) (at <a77ee613b7b343de99a493e01f6701ed>:0)

I was seeing the same errors in a Unity 2021.3.0f1 project. It only happened when some game objects were selected (Camera or Canvas) and it would occur even if the inspector, project and scene/game views were closed.

I wasn’t able to find a setting to make the inspector use IMGUI. Perhaps it is added in newer Unity versions?

A coworker suggested restarting Unity and that fixed it!

i have this problem too, when i select to the other inspector then error gone.