Hi guys, i wanted to ask if you are aware of this massive bug that tons of people using UE 5 is having since a few months ago apparently. I just realised a few days ago which was when i upgraded my nvidia drivers (studio or game it´s the same)
From what i read and was able to also replicate on my end it´s fixed once you roll back to a 551. driver version
Here i post a video of the issue, it starts as soon as you start to add many rect lights, i was using 560 drivers at the moment of recording the video
There are dozens of threads in UE 5 forums of users rolling back to previous nvidia drivers just can´t find one in here, is this something you can fix on a next driver update or would it be entirely related to the epic team?
I am experiencing the exact same issue, with extreme flickering and glitches - and can confirmed this is fixed by rolling back drivers. This makes UE5 unusable on latest drivers.
Is the issue known and planned to be addressed on the driver side on next update?
Thought I’d chime in, just in the off chance anyone has a stable repro from this issue. I have encountered this issue once locally but haven’t been able to reproduce beyond that.
Personally, I have the viewport that changes size, and sometimes the standalone mode becomes really small, and you get a whole stretched black area in the viewport. This has been happening for several versions now, and it’s really annoying. I had to roll back to the drivers from Horizon Forbidden West, where it’s stable.
This wouldn’t happen to be when using the GameReady drivers, would it?
I’ve had no luck reproducing this issue from the Unreal side with Studio drivers.
Just thought Id come in and let you guys know and bump the thread that this is still a severe problem. I have a demo releasing in just a few days and everyone that plays it on current drivers will have this issue. Very irritating.
this problem is killing me here as well… will try to roll back. why doesnt GeForce experience let you install older driver versions ? I love that its so easy to use… but it has zero management capabilities
Welcome @k.becker1 to the NVIDIA developer forums.
The “Clean Installation” is the closest thing of proper roll-back right now. In most cases that works well. If the driver versions are not too far apart.
But your voices have been heard, at least to the last installed driver version. The new NVIDIA app now allows just that.
I can confirm, that rolling back to the 551 has fixed this for me as well which is great news I thought my card was defective and was going crazy.
So does the new nvidia app replace the Geforce Experience then ?
Note that “roll back” here is not just to the previous version installed but to a specific version (in this case 551) it would be great to have that functionality…
Adobe Creative Cloud lets you install a specific version of their apps… to address issues like these its very helpful !
This has totaly messed me up to. My workstation at work that uses a 4090 is now a paperweight as I uninstalled the nvidia drivers and now can’t install anything Nivia drivers or app. The latest drivers now mess up Unreal on my workstation at home using 3090. Turning off the shadow denoiser although stops the issue but the renders some out awful with noise in the shadows. Will try to roll back on home workstaion but worried it too will be come another paper weight
Our QA team is trying to reproduce this bug in internal ticket [4910796] , we are not able to reproduce the behavior in house so far . As we are not UE experts and will probably miss some specifics , can anyone provide a more detailed step by step reproducing way with all needed materials ? This will accelerate our debug a lot . Thanks !
Needs to be tested with a SpotLight, set to ‘Movable’.
Set multiple SpotLights and PointLights, run it in Lumen.
I noticed it looks like the lightmaps are rendered at different resolutions, but scale uniformly instead of scaling while staying at the same render size.
You can test this by changing the render scale settings while in the editor.
Hello,
The issue still exists in 565.90 (Studio Driver), did a clean install, nothing changed. Downgrade to 552.44 solved the issue, but this version has issues with other software so it’s not a solution.
The flickering (more like view duplication) appears randomly without a clear reason, even when rendering to video file using Movie Render Queue. In current recording flickering appears while moving cursor over UI elements, but it also starts flickering without movement of the mouse.
I don’t know the solution, but I found that the conflict is with “Lighting Components / Dynamic Shadows” in Lumen! I hope I’ve helped developers find a solution. Now in UE 5.5 with driver 566.14
