Hi everyone,
This problem started for me as of UE 5.0.3.
I’m running an RTX 2080 ti with 11GB memory, an i9-9900x cpu and 64gm of RAM.
Before I could run 2 seperate projects in UE5 with lumens and nanite running with no issues.
Since the update even with a basic scene I get the dread D3D crash.
Some notes:
I profiled my GPU during the crash and found that unreal memory usage spiked from 5000mb to 11000mb, which I think maxes out my VRAM, causing the full system crash.
I have tried registry edits, reinstalling ue5, updating/installing studio AND game ready driver from nvidia. Not seems to work, however as people have stated, it seems to be an issue with dx12.
Switching to dx11 or vulkan seems to solve the issue but no nanite or lumens. I tried reverting back to dx12 with nanite and lumens disabled, but selecting a camera or taking a screenshot causes an instant crash.
Could this be some sort of memory leak, or memory processing problem inside ue5?
Im on the cusp of reinstalling windows but thought I’d throw in my two cents, I’ll provide an update after the install to see if that helps, but at the moment I think this is a serious problem with ue5’s utilisation of VRAM.