Unreal Engine Issues
Unreal Engine Issues
Niagara Parameter Collection Overrides aren't working
UE - Niagara - Aug 20, 2020Parameter collection overrides defined in the Niagara system's System Properties do not work. In FNiagaraSystemSimulation::GetParameterCollectionInstance the return value of GetParameterCollectionO ...
Light Functions displayed on Large Translucent Meshes cause rendering errors
UE - Graphics Features - Sep 14, 2015Light Functions are stretching and flickering on large translucent surfaces. Translucents Surface:[Image Removed] Opaque Surface:[Image Removed] ...
Physical materials cannot be queried
UE - Rendering Architecture - Materials - Feb 12, 2015Physical materials placed on starter content shapes always return as invalid for any trace or collision query. ...
game terminated on android device when connect or disconnect usb dongle
UE - Platform - Mobile - Jun 1, 2021The game crashed when the USB Dongle is connected or disconnected. Games that made by other engines are work fine. Refer to the attached video for the reproduce. ...
Edit shared defaults for multiple blueprints leads to Engine crash.
UE - Gameplay - Blueprint - Jun 20, 2017Changing any value in Edit shared defaults window with multiple blueprint assets leads to Engine crash. This is a regression from 4.16 ...
Crash when copy and paste actor track what is spawnable and has event track.
UE - Anim - Sequencer - Jul 13, 2020This issue is regression. It crash only 4.25, and it dosen't crash in 4.24. Copy and past a specific track (spawnable, actor with event track, set endpoint) causes a crash in the editor. ...
Crash in ProceduralMeshComponent when building lighting
UE - Graphics Features - May 15, 2015Crash on build in editor with UProceduralMeshComponent 4.8 p2 ...
Linux: UE_ENGINE_DIRECTORY not being set by UBT
UE - Platform - Linux - Mar 27, 2018UBT is not passing UE_ENGINE_DIRECTORY to GForeignEngineDir because in UEBuildTarget.cs IsCurrentPlatform only checks for Windows and Mac. Because GForeignEngineDir is not set, config files and oth ...
Frequent ensure opening meshes on Mac, locks up AMD machines
UE - Graphics Features - Jun 6, 2017REGRESSION No, I was able to reproduce the hard lock in 4.16.1. A frequent ensure occurs when opening static or skeletal meshes on Mac. Doesn't reproduce 100% of the time, but I've gotten it about ...
Crash when copy and paste a Child Actor Component in blueprint.
UE - Gameplay - Blueprint - Nov 14, 2018A crash occurs when copy and paste the ChildActorComponent, only if the template actor has a DefaultSubObject. There is no crash in the case of using Actor (eg. AActor) without a DefaultSubObject as ...