Description

If the option in Project Settings for Accurate Velocities from Vertex Deformation is enabled and then using the View Mode for Lightmap Density you will get a hard crash.

Steps to Reproduce

1. Open UE4.
2. Go to Project Settings > Rendering and enable Accurate velocities from Vertex Deformation
3. Hit "Restart Editor" when prompted
4. Once the editor reboots and compiles shaders switch to the View Mode > lightmap density

Results: Editor will crash and not bring up crash reporter.

Expected: Editor will not crash.

Regression: No

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Cannot Reproduce
ComponentUE - Rendering
Affects Versions4.94.10
CreatedOct 15, 2015
ResolvedMay 13, 2021
UpdatedJul 12, 2021