**System Information**
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce GTX 1660 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.51
**Blender Version**
Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-06-05 07:05, hash: `rBc7fee64dea3a`
Worked: (newest version of Blender that worked as expected)
**Short description of error**
Crash occurs 'every time' when trying to apply a Crease setting to a row of Edges.
**Exact steps for others to reproduce the error**
[Please describe the exact steps needed to reproduce the issue]
Hey Team.
Go to Model window, nice model with many edges in it, select row of Edges in Edit mode, Edge mode, Modelling window, and select Shift-E. Blender then crashes. If you right click on the window and select Edge Crease by mouse, Blender again crashes. If you change from Materials Preview to XRay view, Blender still crashes.
Kind regards,
Bill Ortis
LHC.