Hi everyone, it’s been quite some time without the need of asking for help to this amazing community but I’m desperate for some help. I’m working on a project in 5.3, so far it’s been working great but for the past 4 days I can’t work in it as I used it.
Sometimes I’m working for an hour and it crashes, sometimes it crashes while loading up the project, sometimes when testing in VR mode or play mode, but it always freezes up for about 1-2 minutes without letting me do anything, not even CRTL+ALT+DEL and always the GPU window comes up after that.
I’ve done all common fixes any of you are aware of, is not that this keeps coming up and haven’t done anything. I did a clean installation of Unreal, deleted temp files, re-install nvidia drivers, installed old driver, cleaned gpu motherboard connection, migrated project to an empty one, checked level by level where it was crashing… nothing worked.
As you can see I’ve waited and checked everything I could before posting this but I’m really desperate as I can’t go back to 5.2 and I do not know what else to do, can anyone throw some light into my corner please? I would deeply appreciate anyone that has suffered this what was the fix for it. Thank you kindly.
I’m fairly new to Blender and Unreal Engine, but I’ve been fascinated by them for a long time. I’ve spent about five and a half years building a PC with a powerful enough GPU to run these programs smoothly. Now that I’ve finally accomplished it, I was encountering some issues. I’m not sure what graphics card you’re using, but I have an Nvidia Force RTX 3060 Ti.
During the setup process, I was asked to choose between a “game ready” or “studio” driver. I opted for the “studio” driver because I thought it would be better for my needs. Unfortunately, this ended up causing my system to crash frequently. It would crash while performing simple tasks such as loading, rendering, or selecting nano. It was frustrating, to say the least.
I decided to switch to the “game ready” driver instead. Thankfully, this resolved all of my issues, and I haven’t had any crashes since then. I hope this helps you too, Mac! Best of luck to you as you navigate through the world of Blender and Unreal Engine. Because I am struggling with them something fierce dude
Hi nimz_76, thanks for your reply and welcome to the Unreal Engine world if you jumped into recently. You are absolutely right regarding the driver issue but when it comes to the game and studio drivers things can go both ways.
Some people have managed to fix this same issue by changing the game ready driver to the studio one and some others the other way around, same as you. I also tried both but the issue still persisted, what did the trick this morning after 3 days of trying everything was reverting the project to DX11 insted of DX12, and voila, not a single crash since then so the problem is raytracing. Not on all projects but right now in this project I can’t turn on raytracing without crashing my PC, bummer.
So if in the future that happens to you, or anyone that comes to this post looking for an answer, that might be the one, go to project settings, windows and change default RHI from DX12 to DX11, restart the projects, make yourself a coffee while all shaders re-compile and I’m sure you will be a happier person, I know is not a proper fix but at least I can work on the project for the time being without risking having a heart attack.
Thanks for that, I should have saved the last one as screenshot, but most of the error messages appearing in the debug list were DX12 related so as I explained to @nimz_76 I reverted the project to DX11 and not a single crash since then.
Not sure if you could point me on the right direction if I want to use DX12 again, I haven’t turned it back again because I need to work and can’t waste more time on this issue so you reckon if I turn it back on and re-compile the shaders once again the issue would be gone?
Oh, I see! I actually have a fair amount of experience running into similar issues. DirectX12 runs smoother for me on some GPU’s and some GPU’s run better for me with DirectX11. Even when it comes to playing games made by others I’ve ran into crashes with Dx12 that do not appear with Dx11. I think a lot of it comes down to two things: The GPU and how it relates to Dx11/12 as well as plugins used within a project. If you use any specific plugins, I’d look into the comparisons/feedback for Dx11 and Dx12 with those specific plugins. That was a long way around saying all of that. But, I hope it made sense and was informative!
Hey again! That’s really helpful information and I will give it a shot, since I found out what the issue was I will upgrade to DX12 again as I need displacement and raytracing for some stills and see what happens. This is really annoying because it doesn’t seem to be for a specific reason but for a combination of hardware and project settings instead which makes it really hard to narrow it down. Thanks for your help mate, have a good one!
Here’s a screenshot of the crash, I just updated to DX12 and having constant crashes. What it’s interesting is that if I replace my displayport cable to HDMI one it doesn’t crash using DX12, this situation is really strange.
Yeap, I guess something wrong with the GPU wattage even though it’s new and didn’t have any issues before. But if I run the project on DX12 with nanite displacement on on displayport, it crashes as soon as the project opens or a few minutes after. The same with an HDMI cable doesn’t crash at all, the average Unreal crashing lets say. At least this has helped me realise that not always is Unreal the culprit so check everything before blaming Unreal first!
Awesome! Well, not awesome about the GPU. But, I’m glad you found the issue with it. You could try another display port cable if you one around. I’d start there unless you’ve been able to monitor the GPU wattage and see that it’s the card itself and not the connection.
Hey again, I wish I could know exactly what the issue was for other people to fix it if they encounter the same problem as I did. Creating a fresh project in DX12 doesn’t crash the GPU at all, is just on that particular project and completely random, sometimes while opening the project, sometimes after hours working on it so I can’t narrow it down to what particular issue.
When I render or play at high clock speeds the GPU (a fairly new 4070ti) works like a charm so I doubt there’s nothing wrong with it, I just assume it’s a combination of issues resulting in DX12 not working properly in my project, shame because I needed displacement but I had to find an alternative for that.
Well I solved it for a few days but now I’m unable to open the project at all, not matter what I’m doing is not working anymore. I changed display port cable, reduced GPU wattage with afterburner, deleted nvidia drivers… nothing worked and now I’m sitting on a project that was close to be finished and delivered and can’t open it anymore. As soon as it opens and move the camera around the scene, empty new level or existing one, it freezes for about 4 minutes or it crashes intermediately, I don’t know what to do apart from trowing the PC out of the window…
