Input TextField text selection (TextMeshPro 3.0.6, Unity 2021.3.21f1)

Unity Engine
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1

When I try to select text via mouse cursor in input textfield, application crashes with error:

UnassignedReferenceException: The variable m_TextViewport of TMP_InputField has not been assigned.
You probably need to assign the m_TextViewport variable of the TMP_InputField script in the inspector.
UnityEngine.Transform.get_rotation () (at :0)
UnityEngine.RectTransformUtility.ScreenPointToWorldPointInRectangle (UnityEngine.RectTransform rect, UnityEngine.Vector2 screenPoint, UnityEngine.Camera cam, UnityEngine.Vector3& worldPoint) (at :0)
UnityEngine.RectTransformUtility.ScreenPointToLocalPointInRectangle (UnityEngine.RectTransform rect, UnityEngine.Vector2 screenPoint, UnityEngine.Camera cam, UnityEngine.Vector2& localPoint) (at :0)
TMPro.TMP_InputField+d__295.MoveNext () (at Library/PackageCache/com.unity.textmeshpro@3.0.6/Scripts/Runtime/TMP_InputField.cs:1719)
UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) (at :0)
UnityEngine.MonoBehaviour:StartCoroutine(IEnumerator)
TMPro.TMP_InputField:OnDrag(PointerEventData) (at Library/PackageCache/com.unity.textmeshpro@3.0.6/Scripts/Runtime/TMP_InputField.cs:1704)
UnityEngine.EventSystems.EventSystem:Update() (at Library/PackageCache/com.unity.ugui@1.0.0/Runtime/EventSystem/EventSystem.cs:514)

2

+1 got the same error when clicking in a TMP edit view, and pressing backspace, the app froze with this stack trace. Under inspector, I see my TMP_InputField “Text Viewport” property is unset (“None (Rect Transform)”, but that evidently works fine most of the time. Not sure what I should do there.

3

Still completely ignored in 3.0.8… considering ditching this piece of garbage from our project.