Importing a static mesh keeps on crashing?

Development Asset Creation
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1

So I am making an environment in Unreal Engine 4. I modeled everything in maya and brought it into unreal and I am having a problem importing a static mesh that keeps crashing my level. here is the error code I keep getting:
"
MachineId:E2F9A6094A17D8A2DB757BA023438CE0
EpicAccountId:82344458884f48dda26317847fcfdcc9

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

Assertion failed: ChartB.Join[ Side ^ 1 ] == i [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.6\Engine\Source\Developer\MeshUtilities\Private\LayoutUV.cpp] [Line: 374]

KERNELBASE + 109229 bytes
UE4Editor_Core + 3092349 bytes
UE4Editor_Core + 1597688 bytes
UE4Editor_Core + 1479058 bytes
UE4Editor_MeshUtilities + 222402 bytes
UE4Editor_MeshUtilities + 149371 bytes
UE4Editor_Engine + 8442069 bytes
UE4Editor_Engine + 8443260 bytes
UE4Editor_Engine + 8423259 bytes
UE4Editor_UnrealEd + 9575680 bytes
UE4Editor_UnrealEd + 9136826 bytes
UE4Editor_UnrealEd + 9270727 bytes
UE4Editor_AssetTools + 847862 bytes
UE4Editor_AssetTools + 841823 bytes
UE4Editor_ContentBrowser + 1614625 bytes
UE4Editor_ContentBrowser + 87303 bytes
UE4Editor_ContentBrowser + 121209 bytes
UE4Editor_ContentBrowser + 1344569 bytes
UE4Editor_Slate + 2116506 bytes
UE4Editor_Slate + 2296435 bytes
UE4Editor_Slate + 432060 bytes
UE4Editor_Slate + 160583 bytes
UE4Editor_Slate + 832224 bytes
UE4Editor_Slate + 770598 bytes
UE4Editor_Core + 2484713 bytes
UE4Editor_Core + 2400763 bytes
UE4Editor_Core + 2489275 bytes
UE4Editor_Core + 2387186 bytes
user32 + 105425 bytes
user32 + 104666 bytes
UE4Editor_Core + 2490486 bytes
UE4Editor!FEngineLoop::Tick() + 3434 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launchengineloop.cpp:2193]
UE4Editor!GuardedMain() + 479 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\launch.cpp:131]
UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.6\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618] "

…

Thanks

2

Hi ,

Thank you for taking the time to report your issue.

This has already been resolved in 4.7. This crash was reported with UE-3032 which dealt with a crash when importing or creating lightmaps for some FBXs UVs that have not been setup for use with the lightmaps generated in UE4.

If you’re not able to or wanting to move your project to 4.7 you can disable the import option on for “generate lightmap UV”. This will prevent the crash from happening.

If disabling that option works then it is related to the issue above. If you’re still getting the crash it may be related to UE-4462 which is related to high-poly assets. While this one is still unresolved, we have made it a little better for imports into 4.7 with high poly asset, which may be worth a shot.

Let me know what you find.

Tim