Reproduction steps:
1. Create a new Universal 2D template project
2. Create > Scene > Scene
3. Enter Play mode
4. Double-click on the Scene Asset to open it
5. Repeat steps 3-4
6. Observe the Console
Actual result: "EndLayoutGroup: BeginLayoutGroup must be called first.
UnityEditor.GUIView:ProcessEvent (UnityEngine.EntityId,intptr,bool&) (at /Users/bokken/build/output/unity/unity/Editor/Mono/GUIView.cs:70)" error is thrown
Expected result: No errors or warnings are thrown
Reproducible with: 6000.5.2f1, 6000.6.0b2, 6000.7.0a1
Not reproducible with: 6000.0.78f1, 6000.3.19f1, 6000.5.1f1
Reproduced on: macOS Tahoe 26.5 (M4), Windows 11
Note: Issue is not reproducible with Universal 3D template