Unreal Engine Issues
Unreal Engine Issues
ios threads freeze for almost one second when notifications pop up
UE - Platform - Apple - Mar 18, 2021see the UDN .Setting bOtherAudioPlayingNow to always false can workaround the problem, but it's better to have a more robust solution. ...
Cross does not respond or crashes when "collide with attached children" is enabled
UE - Simulation - Visual - Apr 13, 2021Fatal error! Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000000 0x00007ffb09d32bb9 UE4Editor-Engine.dll!USkeletalMeshComponent::CopyClothCollisionsToChildren() [D:\ ...
The SetEmitterEnable BP function needs implementation
UE - Niagara - Mar 2, 2020The BP function calls FNiagaraSystemInstance::SetEmitterEnable, which sets ExecutionState on the emitter instance to ENiagaraExecutionState::Inactive. FNiagaraSystemSimulation::PrepareForSystemSimul ...
Re-import Groom asset not working in UE5-Preview2
UE - Editor - Content Pipeline - Datasmith - Mar 16, 2022When "re-import" or "re-import with new file" a groom asset in UE5 Preview2, the groom failed to update with the new data/file, still ...
Foliage is placed on LevelInstanceActor does not follow basecomponent when the LevelInstanceActor moves
UE - World Creation - Worldbuilding Tools - Foliage - Jun 24, 2022Foliage usually follows when the Transform of the placed ground or floor changes. However, if the ground or floor is a Level Instance Actor, it will not follow. The cause is in the code below. voi ...
Blueprint editor can crash on removing one of a Sequence node's exec pins
UE - Gameplay - Blueprint Editor - Dec 22, 2023User reported that upon removing a pin from a Sequence node the editor crashed. This only happened once, so may be a multithreading race condition or there may be additional unknown factors. The cra ...
HiddenInGame issues with Nanite enabled meshes
UE - Graphics Features - Nanite - May 15, 2024Nanite meshes marked Hidden in Game do not have selection outlines in the editor. ...
Reimport with new file does not work for Datasmith files if the Interchange flag is enabled.
TM - Interoperability - Jan 31, 2024Disabling Disregard for GC with an invalid asset in GameplayTagTableList causes a controlled crash
UE - CoreTech - UObject - Jul 31, 2024Disabling Disregard for GC leads to a crash in GarbageCollectionVerification.cpp VerifyObjectFlags. This crash occurs when there is an invalid path specified in GameplayTagTableList. The cause of t ...
Editor/Game Ensure hit with RayTracing enabled on AMD GPU
UE - Graphics Features - Ray Tracing - Feb 4, 2025A Static Mesh asset will trigger an ensure when generating building the ray tracing acceleration structure on AMD GPUs. ...