Next issue, just asking around here if anyone else came across the issues / had a workaround before I make a Bug report.
Updated to 5.7 as I heard Chaos Caching issues mostly disappeared in 5.7. Also considered Downgrading.
Engine Version 5.7 doesn’t even start. It crashes due to GPU error on DX12. Changing in config to DX11 works fine. Vulkan works too, but takes a lot of time for compiling shaders. Might be a one time thing, DX11 and 12 were a lot faster at first compilation.
Does not happen with 5.6.1, 5.5.4, 5.4 or any other version I tried so far.
Solutions not, workaround yes. Interesting that it happens on 5.6.1 too though because there I do NOT have that problem.
What is your GPU + Driver version?
Workaround for me:
DefaultEngine.ini → search for the windows settings → Replace the two DX12 entries to either “Vulkan” or “DX11” at the end of the snake case formatted string.
my gpu is same 7900xt i downgrade driver to 25.9.1 its working but my friend has 7900xt to its not work for him and also tryed vulkan but vulkan have very low performans
I have the same issue with 25.10.2 on a 7900xtx. But i cant even open 5.5 any more. It started the first time but had a very low performance and then suddenly the textures turned black and the whole engine crashed. Since than i cant start UE 5.
On 5.7 FULL RELEASE → DX12 issue is fixed. As expected it was an issue on UEs side.
To everyone who has this issue I recommend updating to the 25.10.12 AMD Driver and using 5.7 Full release if you need DirectX12 and tank the occasional freeze in the Editor should you have it too.
If you are on a lower engine version I recommend downgrading AMD Driver. Go Major version by version and see which one works. Which helped for me.
HOWEVER:
Now at least for me the engine editor (not ingame) is freezing every couple seconds when moving over file manager stuff or the Outliner etcetera.
This happens on Vulkan, Dx12, Dx11.
AMD GPU → Symptom: AMD GPU suddenly goes from X % to 0% usage.
I tried setting it to high performance in windows settings, make process priority realtime. Nothing in that regard worked.
I’ll make a different thread for this issue and provide a solution as soon as I got one.