Steps to reproduce:
1. Create new Unity project using Universal 2D Template
2. Create Triangle Sprite in Hierarchy window
3. Add Sprite Library Component in Inspector window on Triangle GO
4. Press “New” button in Sprite Library Component
5. Save Sprite Library location
6. Observe the Console window
Actual results: “EndLayoutGroup: BeginLayoutGroup must be called first.
UnityEditor.GUIView:ProcessEvent (UnityEngine.EntityId,intptr,bool&) (at /Users/bokken/build/output/unity/unity/Editor/Mono/GUIView.cs:82)” error is thrown in the Console window
Expected results: No errors are thrown in the Console window
Reproducible with versions: 6000.7.0a3 (4e1564fc2cca)
Not reproducible with versions: 6000.6.0b6, 6000.7.0a2 (83605ec097c0)
Tested on (OS): macOS Tahoe 26.5.2 (M1)