Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor-CoreUObject.dylib!TFastReferenceCollector<true, FGCReferenceProcessor<true>, FGCCollector<true>, FGCArrayPool, false>::ProcessObjectArray()
UE - Foundation - Core - Jan 24, 2018Comments from users:UEQA - Christina.Sturgill - Release-4.18 CL3691775 - Crashed running Match3 on Mac after game loads.Hit Save All. This crashed the Editor.Used Command+Shift+S to Save All after C ...
Editor crash when Use Dynamic Material Instance is set to "True" on landscape
UE - LD & Modeling - Terrain - Landscape - Mar 23, 2018Setting "Use Dynamic Material Instance" to true in the landscape details will cause the editor to crash. Reproduced in 4.19.0 CL 3944462 and 4.20 Main. This feature is not available in 4.18.3. ...
Keep State doesn't work when using an animation asset together with Anim BP
OLD - Anim - May 11, 2018When using Keep State together with an Animation Blueprint on a Character, the Anim BP will override the Keep State and transition over to the idle animation as the animation in the slot no longer r ...
Project Launcher does not include Prereqs. Ignores Include Preqeq setting and the -prereqs argument
UE - Foundation - Cpp Tools - Aug 3, 2018When using the Project Launcher to package a project, the Include Prerequisites setting is ignored. Attempting to add the -prereqs command to the arguments also does not include these, which is what ...
Curves in compressed additive animations interpolate incorrectly when two keys in a row have the same value
OLD - Anim - Oct 16, 2019Curves compressed from additive animations will not interpolate correctly if they have two keys in a row with the same value. The second key will be ignored, leading to the curve interpolating earli ...
Corrupted Japanese text when packaging for Android
UE - Platform - Mobile - Apr 17, 2020Garbled text is displayed when creating Android package. It did not occur in my colleague's environment using English OS, but occurred in my environment using Japanese OS. This issue should be fixed ...
Improper include generated when C++ class is in a subdirectory
UE - Editor - Workflow Systems - Jun 7, 2022This is not a regression from 4.27.2, however, a similar issue was fixed in 4.26. Generating a C++ class that is in a subdirectory generates the #include "Subdirectory/Class.h" instead of #include ...
Linker Instancing Context duplication results in OOM
UE - World Creation - Worldbuilding Tools - OFPA - Aug 16, 2024In order to fix a major issue involving dissapearing actors during cook, we added instancing context duplication in 31925640. This actually undoes the optimization made from 26543720 Both reported ...
Crash when calling SetVector2DParameter on a Niagara Parameter Collection
UE - Niagara - Mar 10, 2022Crash when calling SetVector2DParameter on a Niagara Parameter Collection. The value for the SetVector2DParameter may or may not have to be changed in order for the crash to occur. Assertion faile ...
UE5 Main - Editor crashes when creating a Data Table
UE - Editor - Workflow Systems - Feb 14, 2022Doesn't occur in UE5 Release or UE4.Can't attach logs/crash information I'm encountering an RHI crash within UE5 Main at the moment. This issue seems to be caused by a commit from last year that ...