2022.1.0b9 UI Builder / Label / Text property loses focus while typing

Unity Engine
,
1

In UI Builder, when editing the Text property of the Label control, the field loses focus and is accompanied by an error in the console:

InvalidOperationException: Collection was modified; enumeration operation may not execute.
System.Collections.Generic.List1+Enumerator[T].MoveNextRare () (at <cdc4992cc04a4e77a24a09cd121af77b>:0) System.Collections.Generic.List1+Enumerator[T].MoveNext () (at :0)
UnityEngine.UIElements.UIElementsRuntimeUtility.UpdateRuntimePanels () (at :0)
UnityEngine.UIElements.UIElementsRuntimeUtilityNative.UpdateRuntimePanels () (at :0)

This means that trying to type beyond 1 character in the text property fails. I’ve resorted to copy/pasting text or editing the uxml file directly.

2

Hi @fdefalco ,

This is a known issue and a fix is being worked on: Unity Issue Tracker - UI Builder&#39;s Inspector text field loses focus after input when interacting with StyleSheet&#39;s dropdown menu beforehand