Unreal Engine Issues
Unreal Engine Issues
BP - Nativized build will crash at runtime if a BP class enabled for nativization includes a ChildActorComponent with a BP not enabled for nativization set as the ChildActor class.
UE - Gameplay - Blueprint - Apr 20, 2017Note: The same crash will occur if the nativization mode is set to "Inclusive" in the Project settings and if the ChildActor BP class is a data-only Blueprint (i.e. has no script or member variables ...
Foliage scalability does not accurately update when settings are changed in game
UE - World Creation - Worldbuilding Tools - Foliage - Sep 26, 2017There is an issue that occurs where changing the scalability settings via the game script during play saves the values for the editor, but when the game is played a second time, the settings visuall ...
Add material API to python
UE - LD & Modeling - Modeling Tools - Mesh Editing - Jan 20, 2020UDN ask to control mesh materials in python script. The API is public but not expose. I suggest to add functionalities to the editor scripting utilities plugin for both static and skeletal meshes. ...
[WorldPartition][CellTransformer] ActorComponents registered with wrong world from UWorldPartition::ApplyRuntimeCellsTransformerStack
UE - World Creation - Worldbuilding Tools - World Partition - Dec 17, 2025There is a risk of actor components registering with the wrong world when reconstructed from UWorldPartition::ApplyRuntimeCellsTransformerStack. The repro case is arguably a bad usage, but it was th ...
Error when quitting Launch on session - A null object was passed as a world context object to UEngine::GetWorldFromContextObject().
UE - Gameplay - Jun 20, 2017The following errors occur when the user quits a Launch On session from the editor:LogPlayLevel: QAGame: [2017.06.20-16.26.03:085][292]LogScriptCore: Error: Script Msg: A null object was passed as a ...
Log Text, Log Location, and Log Box Shape, do not appear in Blueprint Visual Logger or Output Log
UE - AI - Jan 24, 2016Debug information from blueprint visual loggers (log text, loglocation, logboxshape) do not print to either the message log or output log. This can be problematic as the visual debugger specifically ...
Box Extent Not Updating if Changed on an Instance of an Actor in the Level
UE - Gameplay - Blueprint - Feb 1, 2017The Box Extent property does not seem to be updating when changed on an instance of an actor in the level. The size of the box will change, but when the value is printed, it is still printing the in ...
"ensureAsRuntimeWarning condition failed" when running Snapshot Pose with no assigned skeletal mesh
UE - Gameplay - Blueprint - Jul 7, 2017ensureAsRuntimeWarning occurs when the user use Snapshot Pose with a skeletal mesh component that doesn't have a skeletal mesh assigned to it:LogScript: Error: E:\Release\Engine\Source\Runtime\Engin ...
Edit Conditions on Struct that contains FGameplayTagQuery leave the property readonly
UE - Gameplay - Gameplay Tags - Apr 8, 2024When inside an array is used a UStruct with a FGameplayTagQuery var that has the EditCondition meta that is evaluating inside the struct. When a new element is added to the array in the editor, if a ...
Not possible to force the Skeleton attribute to None on a default asset pipeline preset
UE - Editor - Content Pipeline - Import and Export - Jan 9, 2026I guess that when the default value of the pipeline is None, the editor will silently pick the skeleton that is in the same folder of where you are importing. If the UI is active you can then force ...