Subsurface Profile material crashes editor when LPV enabled

BUG: When LPV is enabled, trying to create or open a material with Subsurface Profile shading mode crashes the editor.

I’ve been able to reproduce this issue consistently in a clean project.

Steps to reproduce:

  1. Create new project
  2. Enable LPV (add r.LightPropagationVolume=1 under [Startup] to ConsoleVariables.ini)
  3. Restart editor
  4. Create a material and set its shading model to Subsurface Profile (or open an existing material with the Subsurface Profile shading model configured, if you have one).

The editor immediately crashes after step 4.

Hey coreyx -

Thank you for the report. I was able to reproduce this crash internally and have let our engineers know about the crash, UE-6969. I will keep you informed as we work toward a solution.

Thank You Again -

Eric Ketchum