I am having the exact same issue you are except my hang starts right after launch if I hover over something in the editor. I can move around the viewport without a hang. I first experienced this issue in December 2020 and resolved the issue with a Windows 10 reinstall. A month later, I cannot use UE4 at all. I have tried every solution you tried with no fixes this time. I have two rigs and the issue occurs on both.
My systems:
Ryzen 3800X + NVidia RTX3090 +32 GBs RAM + ASUS x570 Strix-E Mobo
Ryzen 2700X + NVidia RTX2080ti + 16BGs RAM + ASUS x370 Crosshair VI
Hello, experiencing an unusual and very annoying crash that’s been haunting me since installing Unreal Engine 4.25 or 4.26 3-4 days ago. Before you respond, do understand that I am not PC illiterate, I do know what I am doing or have a sense of what I am doing. So to clarify, I will list every solution that I have already attempted to spare confusion.
Nature of the Crash
It does not appear to have any specific cause, it can happen at the most random times and usually only when I am interacting with the features of the editor. Such as saving, importing/exporting assets or textures (I use the Quixel Bridge/Megascans plugin and for some reason it’s beaming 8k textures to my project that I can’t seem to change). Or even just saving out new materials I created or compiling.
When the crash occurs my entire UE4 Editor hangs, the application itself becomes unusable. A total lockdown and freeze that not even the task manager (with details/processes tab) can seem to close. It says I do not have permission to close the application.
To further express the severity of this issue, I even went into the command prompt as admin and ran a /task kill /im UE4Editor /t /f. It failed to close the process.
So I have a dead UE4 stuck on my screen that is still managing to consume 4GB of my memory yet the process has completely frozen dead. I can’t shut it down without a full Windows restart from boot, and then I just keep working until I get unlucky again, usually within 1-2 hours.
PC RIG
AMD Ryzen 9 3900X 12-Core Processor
(no overclocking at all)
32 GB of DDR4 RAM
1070 GTX GPU
ASUS x570 TUF-Gaming Motherboard
Corsair Force MP500 1TB M.2 NVMe
SSD. (Both UE versions are installed
on this drive)
SOLUTIONS I HAVE TRIED
Updating/Reinstalling my NVIDIA drivers.
No new Windows 10 updates, and I am currently running: Windows 10 Home - Version 20H2 OS Build 19042.746
My AntiVirus (BitDefender Free) has both my UE4.25/4.26 folders on exceptions just in case.
I have tried closing any unnecessary background apps such as Razer Synapse, Gyazo, and even my ASUS Bios utilties.
Swapped hard drives/SSD’s that the engines are installed on. Double checked firmware upgrades (there were none), and also reinstalled each version of the engine AND Epic Games Launcher at least 3 times each.
Generated a brand new clean project, it makes no difference. This issue occurs in anything I do involving the editor.
Disabled any beta plugins (currently experimenting with Landmass and Procedural Foliage, but these have never been an issue for me before.
Windows 10 was reinstalled fresh in November 2020. UE4 was not installed again for the first time until a few days ago, so if this is an issue with my Windows (which is currently my last solution), then I was unaware of it.
Disabled G-Sync on my monitor while running the engine (solved my former issue of major FPS lags)
Disabled/Re-enabled a lot of settings other people with similar issues have suggested. Such as the shadows, smooth FPS etc. none of it should have touched the performance on a PC as powerful as mine and none of these changes fixed the problem.
Tried running the Engine as admin. Fat lot of hope it was worth.
Upgraded my BIOS to the latest stable release, though unlikely the cause given I was only 1 version behind in November.
I may be missing a few things from this list, but I think I covered the most obvious. I never ask for help unless I am absolutely desperate, so I plead anyone who has any clue what this strange crash may be originating from, you would be a god or goddess among humanity.
If you require anything such as DxDiag etc., let me know and I will respond. Monitoring replies as often as I can daily/hourly.
I have no idea how to quote or comment on this section, but a good suggestion I did not consider yet is the studio driver because the last time I tried it, I had problems but that was a while ago.
I will give my drivers a hard reinstall and attempt the Studio drivers tonight. As for the taskbar, I do not use an auto-hidden taskbar. Mine is locked always.
As for the registry fix, I doubt this is the problem since I have not exactly been rendering anything that intense for my PC. It’s mostly occurred when it comes to saving or executing basic features like creating a new material, applying a new material (which I realise is a render in a sense, but not an intense one that -should- be causing my PC to hang at all).
Nice rig xD! Lucky sod got yourself a 3090. Still waiting on my 3080 RTX sobs
Thanks to the help of another thread which gave me the tip, it appears NVIDIA’s latest drivers in January 2021 do not seem to agree with UE4 4.25/26 in some way.
Downgrading to a recommended 469.89 December 2020 has resolved my crashes, at least for today. I have been able to use 4.26 with good stability, no performance dips (not serious ones anyway - I use the water plugin xD) and no crashes so far for a straight 5-6 hours.
The studio drivers before the latest update work “OK” for me.
Still some crashes on hard loading. Like if i delete something from the world. The engine can crash.
Not sure about the latest studio drivers. But the game ready drivers are NO GOOD!
I had the same issue. Vyollet’s solution helped to restore Unreal to non-freezing-immediately state.
It works fine now.
Solution for me as stated above: Install December Nvidia Studio drivers.
rtx3070, 3950x, fresh WIN install (new machine)
I had the same issue. Vyollet’s solution helped to restore Unreal to non-freezing-immediately state.
It works fine now.
Solution for me as stated above: Install December Nvidia Studio drivers.
rtx3070, 3950x, fresh WIN install (new machine)
I am having the exact same issue - Engine runs and frame rate is fine, but randomly crashes and I get a D3D device lost Internal Error: 0x887A0020
Been googling around for answers and haven’t found any yet, though this thread seems finally to hold some answers. I’m going to install the Studio Drivers now and see if that solves anything on my side.
I have though previously heard of actual hardware issues with GigaByte branded cards (I’m on an Asus Rog Strix 3090) - where the power supply would cause issues.
I’m wondering if similar could be up with the Asus cards. Will see if the Studio Drivers does any wonders here as its absolutely preventing me from really working right now.
I am still have the same issue when i am done with the Build of lighting and try to save the file it just freeze . I have also divided levels so that its is not heavy , some time its still Freeze and had to re start the pc entirely … Need help i have done all the above solution, still the same issue persist.