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Adding a connected bones to an anim curve crash UE4.21


Everytime I try to add connected bones to an Anim Curve the engine crash.

How to reproduce: Open a skeletal mesh -> Anim Curve window -> add a curve -> details panel -> click '+' to add Connected Bones => Crash

[2019.03.15-15.15.54:435][507]LogStats: FPlatformStackWalk::StackWalkAndDump - 0.300 s
[2019.03.15-15.15.54:435][507]LogOutputDevice: Error: === Handled ensure: ===
[2019.03.15-15.15.54:435][507]LogOutputDevice: Error:
[2019.03.15-15.15.54:435][507]LogOutputDevice: Error: Ensure condition failed: BoneReference.bUseSkeletonIndex [File:D:\Build\++UE4\Sync\Engine\Source\Runtime\Engine\Private\BoneContainer.cpp] [Line: 261]
[2019.03.15-15.15.54:435][507]LogOutputDevice: Error:
[2019.03.15-15.15.54:435][507]LogOutputDevice: Error: Stack:
[2019.03.15-15.15.54:435][507]LogOutputDevice: Error: [Callstack] 0x00007ffad22ea5ca UE4Editor-Engine.dll!UnknownFunction []

[2019.03.15-15.15.55:231][507]LogWindows: Windows GetLastError: L’opération a réussi. (0)
[2019.03.15-15.15.55:935][507]LogWindows: Error: === Critical error: ===
[2019.03.15-15.15.55:935][507]LogWindows: Error:
[2019.03.15-15.15.55:935][507]LogWindows: Error: Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:D:\Build\++UE4\Sync\Engine\Source\Runtime\Core\Public\Containers/Array.h] [Line: 611]
[2019.03.15-15.15.55:935][507]LogWindows: Error: Array index out of bounds: -1 from an array of size 16 [2019.03.15-15.15.55:935][507]LogWindows: Error:
[2019.03.15-15.15.55:935][507]LogWindows: Error: [Callstack] 0x00007ffb2c50a388 KERNELBASE.dll!UnknownFunction []

OS windows 10

Product Version: UE 4.21
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asked Mar 15 '19 at 03:40 PM in Bug Reports

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avatar image Jeff A ♦♦ STAFF Mar 18 '19 at 01:30 PM


We've recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.



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