UE crash when changing levels in mobile preview

Development Platform & Builds Mobile
, , , ,
1

UE is crashing when i change level, cant find solution for this. Can you help poor noobie ?

MachineId:2F32C15048EB72B78214F3AF4731537C
EpicAccountId:d3fa2701081e44ceba8da86df17e97c8

Unknown exception - code 00000001 (first/second not available)

"Fatal error: [File:D:\BuildFarm\buildmachine_++depot+UE4-Rel

UE4Editor_Core!FDebug::AssertFailed() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\misc\outputdevice.cpp:374]
UE4Editor_Engine!FMaterial::GetShader() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\materials\materialshared.cpp:1525]
UE4Editor_Renderer!TBasePassForForwardShadingDrawingPolicy,0>::TBasePassForForwardShadingDrawingPolicy,0>() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\renderer\private\forwardbasepassrendering.h:375]
UE4Editor_Renderer!FDrawBasePassForwardShadingStaticMeshAction::Process,0>() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\renderer\private\forwardbasepassrendering.cpp:163]
UE4Editor_Renderer!ProcessBasePassMeshForForwardShading() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\renderer\private\forwardbasepassrendering.h:660]
UE4Editor_Renderer!FBasePassForwardOpaqueDrawingPolicyFactory::AddStaticMesh() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\renderer\private\forwardbasepassrendering.cpp:214]
UE4Editor_Renderer!FStaticMesh::AddToDrawLists() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\renderer\private\scenecore.cpp:338]
UE4Editor_Renderer!FPrimitiveSceneInfo::AddStaticMeshes() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\renderer\private\primitivesceneinfo.cpp:148]
UE4Editor_Renderer!FPrimitiveSceneInfo::AddToScene() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\renderer\private\primitivesceneinfo.cpp:190]
UE4Editor_Renderer!FScene::AddPrimitiveSceneInfo_RenderThread() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\renderer\private\rendererscene.cpp:352]
UE4Editor_Renderer!FScene::AddPrimitive'::2’::EURCMacro_FAddPrimitiveCommand::DoTask() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\renderer\private\rendererscene.cpp:551]
UE4Editor_Renderer!TGraphTask<FScene::AddPrimitive'::2’::EURCMacro_FAddPrimitiveCommand>::ExecuteTask() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\async\taskgraphinterfaces.h:779]
UE4Editor_Core!FTaskThread::ProcessTasks() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\async\taskgraph.cpp:539]
UE4Editor_Core!FTaskThread::ProcessTasksUntilQuit() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\async\taskgraph.cpp:340]
UE4Editor_RenderCore!RenderingThreadMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\rendercore\private\renderingthread.cpp:310]
UE4Editor_RenderCore!FRenderingThread::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\rendercore\private\renderingthread.cpp:411]
UE4Editor_Core!FRunnableThreadWin::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:74]

2

i have pulled content folder out of project then launched project, then created a new default level and launched on mobile preview, it crashed so its not bug from content

3

Hey Bla5terius,

Could you please see whether or not you’re able to reproduce this crash in 4.11.2, as well as a newly created project in 4.10. We’d also benefit from complete reproduction steps.

Thank you!

4

Sorry for my poor english. :wink: but i think you understand me. There is no crash in newly created project, only in one i was working on. But i have found solution, it may help few people because i have seen this crash few times here.
There is no problem with content but with rendering, we need to make force rendering of all content. Go to Edit->Project Settings->Rendering. Now dont close this project and open a new one and open this settings too. Now need to check what option and checked. Check your option as in new project, there should be information that you need to restart, if there is not, check other options to make restart apear. Now after you restart game will render all. In my crash it helped, i checked options that i had when crash apear and now alll work good :slight_smile: I hope this will help someone. Once again sorry for my english :wink: cheers !

5

Thank you for providing the information regarding what has corrected the crash you were experiencing. Please let us know if you run into any additional complications.

Have a great week! :slight_smile: