Unreal Engine Issues
Unreal Engine Issues
Game projects that rely on legacy include paths are not compatible with Blueprint nativization.
UE - Gameplay - Blueprint - Nov 10, 2018Using legacy-style #include paths in a game project is allowed by UBT by default, but it's currently not compatible with Blueprint nativization, as it does not account for this possibility. Current ...
TArray64 RangeCheck prints the incorrect error messages for values over 32-bit length
UE - CoreTech - Apr 27, 2022TArray64 RangeCheck prints the incorrect error messages for values over 32 bit. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue did occur there, it is not a regressi ...
Making changes to a Camera Shake while previewing the Camera Shake triggers a crash
UE - Anim - Sequencer - May 23, 2022This is not a regression. Tested in //UE4/Release-4.27 CL 18319896 Making changes to a Camera Shake while previewing the Camera Shake triggers an Assertion upon compiling. ...
Bindless Textures do not mip stream as expected
UE - Rendering Architecture - RHI - Jan 29, 2025Bindless textures do not appear to stream mip levels. This issue is separate from an already reported bindless virtual texture streaming issue. When the editor is freshly launched or when mip level ...
DefaultToSelf on a TScriptInterface parameter does not default correctly
UE - Gameplay - Blueprint - Aug 31, 2020This issue seems to stem from the incorrect constructor being called for TScriptInterface, so the correct Interface pointer does not get called. If you explicitly connect a reference to "Self" to ...
Adding a Reroute node to a function's array output will cause the Function node to be missing the output
UE - Gameplay - Blueprint - Mar 26, 2015Adding a Reroute node to a function's array output will cause the Function node to be missing the output. This seems to be only effecting Arrays. Standard variables work fine. ...
Set Ignore Look Input stacks the resulting value each time it is called
UE - Gameplay - Jan 5, 2015Set Ignore Look Input stacks the resulting value each time it is called. If Set Ignore Look Input is called more than once with the same value, it will take as many calls with the opposite value to ...
Behavior Tree Decorator Not Aborting When Observer Aborts is Set in Behavior Tree
UE - AI - Jun 15, 2016Behavior Tree Decorators are not aborting when observer aborts is set in the Behavior Tree. Setting Observer Aborts inside of the Decorator blueprint causes it to work as expected. Found in 4.12.2. ...
Native default subobjects nulled in child Blueprints on compile
UE - Gameplay - Blueprint Compiler - Oct 25, 2021From reporting UDN: "We had a weird issue with new components added in C++ not being instanced properly on non-direct Blueprint children. It seems to happen if loading of the parent BP is deferred ...
OFPA Localizable Text Instances are not gathered when world partitioning is disabled
UE - World Creation - Worldbuilding Tools - OFPA - Mar 7, 2025Context One File Per Actor (OFPA) reduces overlap between users by saving data for instances of Actors in external files, removing the need to save the main Level file when making changes to its Act ...