Minor bug in Paper2D

Wasn’t sure where to post this, so forgive me if this is the wrong place. So I made a flipbook and accidentally added an extra frame. I didn’t see a way to remove that frame, and didn’t want to delete all of them and start over. So I set the “Frame Run” field of the last, unwanted frame to 0. It seemed to play just fine in the preview window. However, I noticed that if in BP I tried to change the flipbook of my component to this one, it would crash the editor every single time without fail. I redid the anim, and now it works fine without any issues. Below is the stack trace in case it’s useful, although I’ve already submitted it a few times.


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

Assertion failed: !bPostTickComponentUpdate [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.2\Engine\Source\Runtime\Engine\Private\LevelTick.cpp] [Line: 703]

KERNELBASE + 37901 bytes
UE4Editor_Core + 2998748 bytes
UE4Editor_Core + 1620298 bytes
UE4Editor_Core + 1561376 bytes
UE4Editor_Engine + 5079251 bytes
UE4Editor_Paper2D + 70584 bytes
UE4Editor_Paper2D + 74302 bytes
UE4Editor_Renderer + 1343109 bytes
UE4Editor_Engine + 1770952 bytes
UE4Editor_Engine + 1639237 bytes
UE4Editor_Engine + 5132103 bytes
UE4Editor_Engine + 5161378 bytes
UE4Editor_UnrealEd + 1464870 bytes
UE4Editor_UnrealEd + 5375494 bytes
UE4Editor!FEngineLoop::Tick() + 3555 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.2\engine\source\runtime\launch\private\launchengineloop.cpp:2091]
UE4Editor!GuardedMain() + 476 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.2\engine\source\runtime\launch\private\launch.cpp:132]
UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.2\engine\source\runtime\launch\private\windows\launchwindows.cpp:125]
UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.2\engine\source\runtime\launch\private\windows\launchwindows.cpp:207]
UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]

Hi Architekt,

Please post this to the answerhub at for further assistance. Thank you!