Steps to reproduce:
1. Create a new Unity unity project
2. Create a VFX Graph Asset
3. Open VFX Graph
4. In Blackboard > Attributes > Basic Simulation find “age” Attribute
5. Hover and click with the mouse on lock icon
6. Drag the attribute down
Actual results: Drags can only be started from MouseDown or MouseDrag events
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&) (at /Users/bokken/build/output/unity/unity/Modules/IMGUI/GUIUtility.cs:224)” error is thrown
Expected results: ragging locked attribute should either do nothing or display a warning message indicating the attribute cannot be dragged.
Reproducible with versions: 6000.3.0a1
Not reproducible with versions: 6000.2.0b9
Tested on (OS): macOS Silicon, Sequoia 15.5 (M1)