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My New Project crahes always at loading(UE 4.3)


My new Project crashes always when it loads the examable map. Within the projekt i just imported some static meshes and textures. all Worked but today i tryed to load it and it keeps crashing... . Ill postn the Crash under this post.

 Unknown exception - code 00000001 (first/second chance not available)
 Assertion failed: !bGenerateNonMirroredCollision || CookedDataReader.ConvexMeshes.Num() == 0 || CookedDataReader.ConvexMeshes.Num() == AggGeom.ConvexElems.Num() [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.3\Engine\Source\Runtime\Engine
 KERNELBASE + 37901 bytes
 UE4Editor_Core + 3009491 bytes
 UE4Editor_Core + 1775834 bytes
 UE4Editor_Core + 1703568 bytes
 UE4Editor_Engine + 13960159 bytes
 UE4Editor_Engine + 14047428 bytes
 UE4Editor_CoreUObject + 1002234 bytes
 UE4Editor_CoreUObject + 1492886 bytes
 UE4Editor_CoreUObject + 1529448 bytes
 UE4Editor_UnrealEd + 2498355 bytes
 UE4Editor_UnrealEd + 2446717 bytes
 UE4Editor_UnrealEd + 2373633 bytes
 UE4Editor_UnrealEd + 5348560 bytes
 UE4Editor_UnrealEd + 2838532 bytes
 UE4Editor_UnrealEd + 2837592 bytes
 UE4Editor_UnrealEd + 5495106 bytes
 UE4Editor_UnrealEd + 5344976 bytes
 UE4Editor!GuardedMain() + 285 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.3\engine\source\runtime\launch\private\launch.cpp:125]
 UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.3\engine\source\runtime\launch\private\windows\launchwindows.cpp:125]
 UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.3\engine\source\runtime\launch\private\windows\launchwindows.cpp:207]
 UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]

Thanks in advance

  • Siebencorgie

Product Version: Not Selected
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asked Jul 27 '14 at 10:41 PM in Bug Reports

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2 answers: sort voted first


Thank you for your report. We were not able to investigate this on the engine version you reported, but there have been many version changes to UE4 since this question was first posted. With a new version of the Engine comes new fixes and it is possible that this issue has changed or may no longer occur. Due to timetable of when this issue was first posted, we are marking this post as resolved for tracking purposes.

If you are still experiencing the issue you reported in the current engine version, then please respond to this message with additional information and we will investigate as soon as possible. If you are experiencing a similar, but different issue at this time, please submit a new report for it.

Thank you

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answered Oct 03 '14 at 03:37 PM

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Your assertion failed during the

UBodySetup::CreatePhysicsMeshes() process. My suggestion is that you brought in some meshes, I would remove them from your content directory folder as a test. Thats the best idea, I have.

Hope that helps =)

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answered Jul 27 '14 at 10:59 PM

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avatar image siebencorgie Jul 28 '14 at 08:35 AM

I did this but it still crashes... do i have to make a new Projekt and set it up from ground without coping stuff frome one projket to another?. In 4.2.1 I was able to copy most of my Meshes etc.. Is this not supportet anymore in Ue4.3 or did I had just Bad Luck?

avatar image eXi Jul 28 '14 at 08:55 AM

Hm, i remember migrating something from 4.2.1 to 4.3 (the commentary box of the blueprint_testlevel) and everything worked fine.

So, does your project crash on startup or when start playing? Is it the normal example_map or do you have models/blueprints with models placed in it? If so, try removing one by another. If its the editor that crashes just from starting than im overasked.

avatar image siebencorgie Jul 28 '14 at 01:38 PM


i discovered tha this promblem seems to be mutch bigger so i moved it to a other post which is listed und "Bug Report" and discripes it a bit better.


thanks for your help :)

avatar image siebencorgie Jul 28 '14 at 09:08 AM

Hi, sadly it crashes at starting the projekt when it loads the deafult (examble) map. So I cant reamove anything.

I also sented a Report to Unreal, maybe i have to wait for an 4.3.1 update and the try it again...

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