Unreal Engine 5.2 would suddenly freeze completely when I was doing very ordinary operations (like clicking on assets, dragging blueprint nodes, etc.).
This problem comes up very frequently and randomly and I can’t figure out why.
There are no errors, no unresponsive states, no crashes, no automatic program closure. I can’t close this window in the computer status bar, only force it to close in the Task Manager.
I tried both the older version of February and the latest graphics driver and both had this problem, and my version of Windows also stayed up to date.
Does anyone know how to solve this problem?
Greetings @Online_Learner_t7Tuo
Welcome to the Unreal Engine Forums! With this freezing, it could be a number of different things. When you run it again try enabling the Output log by going to Window>Output log. (For older versions Window>Developer Tools>Output Log. There’s also a copy of it in C:\Users/Documents\Unreal Projects\MyProject\Saved\Logs. Trying running it again and when it crashes post the log/error here. We can definitely get a better idea of what may be going on then. I hope this helps!
Thank you for your reply.
I opened UE again after a freeze and checked the Output Log. There was a lot of information, most of it was gray, but there were a few lines of yellow and a line of red errors, which I pasted to the bottom.
If possible, please take a look at it for me. Thank you
RED LINE：
LogHttp: Warning: 0000086C88240500: request failed, libcurl error: 65 (Send failed since rewinding of the data stream failed)
YELLOW LINE：
LogClass: Warning: Property StructProperty UPaperZDAnimationComponent::RenderComponent defines MetaData key “AllowedClasses” which contains short type name “PrimitiveComponent”. Suggested pathname: “/Script/Engine.PrimitiveComponent”. Module:PaperZD File:Public/PaperZDAnimationComponent.h
LogClass: Warning: Property ArrayProperty UPresetSettingsProperties::ActivePresetCollectionsPaths defines MetaData key “MetaClass” which contains short type name “InteractiveToolsPresetCollectionAsset”. Suggested pathname: “/Script/PresetAsset.InteractiveToolsPresetCollectionAsset”. Module:ModelingToolsEditorMode File:Public/ModelingToolsEditorModeToolkit.h
LogAutomationTest: Warning: LogClass: Property StructProperty UPaperZDAnimationComponent::RenderComponent defines MetaData key “AllowedClasses” which contains short type name “PrimitiveComponent”. Suggested pathname: “/Script/Engine.PrimitiveComponent”. Module:PaperZD File:Public/PaperZDAnimationComponent.h
*LogAutomationTest: Warning: LogClass: Property ArrayProperty UPresetSettingsProperties::ActivePresetCollectionsPaths defines MetaData key “MetaClass” which contains short type name “InteractiveToolsPresetCollectionAsset”. Suggested pathname: “/Script/PresetAsset.InteractiveToolsPresetCollectionAsset”. Module:ModelingToolsEditorMode File:Public/ModelingToolsEditorModeToolkit.h
LogHttp: Warning: 0000086C88240500: invalid HTTP response code received. URL: https://datarouter.ol.epicgames.com/datarouter/api/v1/public/data?SessionID={E8774BAB-4514-FBE8-5469-AC946A71A394}&AppID=UEEditor.Rocket.Release&AppVersion=5.2.1-26001984%2B%2B%2BUE5%2BRelease-5.2&UserID=607dddb04f250f14db6db6b10340e444|37ba17946e264f45aa245015bccc944f|55c54ce5-6cae-4e88-8f19-b63a5c6089f5&AppEnvironment=datacollector-binary&UploadType=eteventstream, HTTP code: 0, content length: 0, actual payload size: 0
LogHttp: Warning: 0000086C88240500: libcurl info message cache 0 (Found bundle for host: 0x86c3a960000 [serially])
LogHttp: Warning: 0000086C88240500: libcurl info message cache 1 (Re-using existing connection #0 with proxy 127.0.0.1)
LogHttp: Warning: 0000086C88240500: libcurl info message cache 2 (Connected to 127.0.0.1 (127.0.0.1) port 10809 (#0))
LogHttp: Warning: 0000086C88240500: libcurl info message cache 3 (We are completely uploaded and fine)
LogHttp: Warning: 0000086C88240500: libcurl info message cache 4 (Connection died, retrying a fresh connect (retry count: 1))
LogHttp: Warning: 0000086C88240500: libcurl info message cache 5 (necessary data rewind wasn’t possible)
LogHttp: Warning: 0000086C88240500: libcurl info message cache 6 (Closing connection 0)
LogHttp: Warning: 0000086C88240500: libcurl info message cache 7 (TLSv1.2 (OUT), TLS alert, close notify (256)
LogHttp: Warning: Retry exhausted on https://datarouter.ol.epicgames.com/datarouter/api/v1/public/data?SessionID={E8774BAB-4514-FBE8-5469-AC946A71A394}&AppID=UEEditor.Rocket.Release&AppVersion=5.2.1-26001984%2B%2B%2BUE5%2BRelease-5.2&UserID=607dddb04f250f14db6db6b10340e444|37ba17946e264f45aa245015bccc944f|55c54ce5-6cae-4e88-8f19-b63a5c6089f5&AppEnvironment=datacollector-binary&UploadType=eteventstream*
Oh, I see. Are you running any type of firewalls, Windows defender, etc? If so, try disabling any firewalls temporarily and try again. ‘libcurl’ error is often associated with that being a culprit. Let me know if this resolves the problem. (Ensure that you disable any firewall that you may have on before testing again. You may need to add exceptions later on)
Thank you for answering my question again.
The only red error message disappeared when I turned off the firewall. However, the freezing problem still occurred, and there was no red error in the Output Log after I restarted UE.
It seems that the Output Log does not retain information from the last run, and my C:\Users\Documents\Unreal Projects folder is empty, with no MyProject\Saved\Logs folder.
Is there any other way I can find the error and fix it?