Steps to Reproduce
Hey! We’re facing an issue potentially unrelated to Unreal Engine, but it’s always worth to ask the community. I know many other Unreal Engine games are/may be affected.
Our beta players report full PC freeze, no crash report is shown, PC needs to be rebooted. This started with Windows 11 24H2 update, but is much more visible with recent NVidia driver updates (576).
We’re working with players on collecting the information but it is extremely hard to find any useful leads. We are also in sync with NVidia.
Maybe you have some ideas? Existing experience?
Here is what I found so far:
[PC] We will deploy a temporary fix for players who were experiencing issues playing on Windows 11 24H2. Please note that you may experience some performance issues while we work on a more permanent fix. As soon as it is ready, we will let you know. Thank you for your understanding.
Also, we have just deployed a temporary hotfix (v1.4.1) for players who were experiencing issues playing on Windows 11 24H2. Please note that you may experience some performance issues while we work on a more permanent fix. As soon as it is ready, we will let you know. Thank you for your patience.
I don’t know any details, I suspect it might be process affinity or priority.
I also found:
https://www.pathofexile.com/forum/view\-thread/3594471/page/552
Just wanted to let you guys know, Microsoft wrote back to my bug report, that the bug will be fixed with Windows 11 insider version >= 27785. As I always suspected, this issue was indeed a bug in the Windows 11 24h2 CPU scheduler. Here is the official answer by MS:“[…] that the bug you have signaled has been correctly solved, and it was tied to an erroneous approximation of the cycle counter when the frequency of the CPU was going more than 4 GHz, which is the maximum amount representable with a UINT32.Windows Insider versions >= 27785 should solve the problem.”
Thanks id advance!