UE 5.1 crashes if Shader model 6 is enabled

Creating a new project and exporting terrrain, got rid of blotches. I’d love to know why, but at least fixed.

if anyone knows whats up with the blotches please post.

Ty

Hello!

I’ve had a similar issue where the editor would freeze and crash after pressing eject/F8 while the game is running. (Play In Editor)
This crash occured on any project when I was runnig UE 5.1 or 5.1.1 with SM6 is enabled, DirectX 12 enabled in the platform setting for windows AND Show->Visualize->Physics Field is enabeled in the viewport.

Error:
Failed to find shader type FPhysicsFieldRayMarchingCS in platform PCD3D_SM6

Tried updating UE, Verifying UE, updating GPU drivers without any luck.

Either switching to DirectX 11 or disabling the Physics Field visualizer solved the problem for me.

Core™ i9-11900K
64,0 GB RAM
RTX 3080TI
+Tested on Win 10 and Win 11 machines with varying specs with the same results.

Hope this can help someone else out!

3 Likes

I had the exact same issue, thanks a lot for the solution of Disabling the Physics Field visualizer.

I had the same issue too, Now I can’t open my project.

Were you able to solve this? I believe my second RVT volume might be the issue as well.

@AnahTTS @Altrue Could you tell me how did you go about disabling the Physics Field Visualizer? I replicated the issue in editor, but I am trying to disable the Physics Field for a packaged platform.

I clicked on the “Visualization” button in the PIE window, no relation to packaged mode

can i change it in some config.ini?
if so can someone help me where?
i have checked SM6 because i had a popup saying its required, after restart my project crashes instantly, i have no access to the project anymore, where can i change it back to what it was so it atleast opens?

ok i found it its in the defaultengine.ini the line with sm6 just remove it

I went back to Direct X 11 and it worked, thanks for the tip!