This JIRA is being entered as a result of it being one of the top crashes occurring in 4.13 Preview 1.
Error message:
Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 833] Array index out of bounds: 7778 from an array of size 7776
Source Context:
59 check(Runnable);
60
61 // Initialize the runnable object
62 if (Runnable->Init() == true)
63 {
64 // Initialization has completed, release the sync event
65 ThreadInitSyncEvent->Trigger();
66
67 // Setup TLS for this thread, used by FTlsAutoCleanup objects.
68 SetTls();
69
70 // Now run the task that needs to be done
71 ExitCode = Runnable->Run();
72 // Allow any allocated resources to be cleaned up
73 ***** Runnable->Exit();
74
75 #if STATS
76 FThreadStats::Shutdown();
77 #endif
78 FreeTls();
79 }
80 else
81 {
82 // Initialization has failed, release the sync event
83 ThreadInitSyncEvent->Trigger();
84 }
85
86 return ExitCode;
87 }
88
Most recent user affected CL: 3072953
Logs:
[Link Removed]
[Link Removed]
[Link Removed]
Result: Editor Crashes
UE4Editor_AlembicLibrary!AbcImporterUtilities::GenerateSmoothingGroupsIndices() UE4Editor_AlembicLibrary!FAbcMeshDataImportRunnable::Run() UE4Editor_Core!FRunnableThreadWin::Run() [windowsrunnablethread.cpp:74]
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-34294 in the post.