Unreal Engine Issues
Unreal Engine Issues
add_possessable doesn't work for all objects
UE - Anim - Sequencer - Jun 17, 2019Using following code in Python: seq.add_possessable(seq.add_spawnable_from_class(unreal.CineCameraActor).get_object_template().camera_component) doesn't create a camera component track in sequen ...
Replay System throws an Ensure during demoplay when calling it in a different Level
UE - Networking - Jul 10, 2019Replay System throws an Ensure during demoplay when calling it in a different Level. The error is thrown at Source\Runtime\Engine\Private\RepLayout.cpp]. It does not prevent the Replay from being pl ...
Level sequencer's play to(second) function not working as expected
UE - Anim - Sequencer - Aug 22, 2019The function Play to(seconds) does not functions as it's tooltip implies. "Play the sequence from the current time, to the specified time in seconds". The function instead snaps to the specified tim ...
"Simulate Selected" overwrites "Physics Type" property when playing in Editor
UE - Simulation - Physics - Sep 5, 2019"Simulate Selected" overwrites "Physics Type" property when playing in Editor. In any subsequent PIE sessions SK_Mannequin will simulate physics even though the option is toggled off. This was repo ...
GetCookedEnvelopeData Blueprint node does not work
UE - Audio - Oct 17, 2019The GetCookedEnvelopeData Blueprint node does not output cooked audio envelope data when a Soundwave with enabled Amplitude Envelope Analysis is being played. Tested in 4.21 (CL - 4753647), 4.22.3 ...
Private functions can be overriden in the "My Blueprint" tab
UE - Framework - Blueprint Editor - Apr 29, 2022Discovered during investigation of [Link Removed]. This is happening because we are not filtering out private parent functions in SMyBlueprint::BuildOverridableFunctionsMenu. With any fix that is ...
UMovieSceneTrackInstance::GetWorld() does NOT work properly in Editor
UE - Anim - Sequencer - Mar 28, 2023UMovieSceneTrackInstance::GetWorld() returns nullptr on Editor, so user can't use any function using WorldContext and Subsystem. The following code change may fix this issue UWorld* UMovieSceneTra ...
Parameters show up in material instances even if they're not supposed to be exposed
UE - Rendering Architecture - Materials - Feb 28, 2018In this case, I've added inputs to a material function. That material function input uses a parameter as it's default value. [image: Inline image 1] When referenced in the shader[image: Inline ima ...
Invalidation panels can retain stale hittest data when caching is disabled/enabled
UE - Editor - UI Systems - Slate - Aug 20, 2024Changes to the hit test grid of an invalidation panel while caching is disabled won't be respected when caching is reenabled. This can cause interactive widgets such as buttons who were set to colla ...
Dataprep crash
UE - Editor - Content Pipeline - Visual Dataprep - Apr 16, 2025This question was created in reference to: [Link Removed] Last post fixed the import crash, but it seems it added another. If we hit Execute button twice in a row by mistake we get a crash with th ...