Unreal Engine Issues
Unreal Engine Issues
Nativization of Blueprint Subclass of PlayerStart fails
UE - Gameplay - Feb 23, 2018Fail to package with nativization. cannot convert from 'USceneComponent *' to 'UBillboardComponent ...
Blutility context menu popup shows all pins inside function
OLD - Anim - Jul 23, 2018ActorAction Blutilites are showing all pins inside a function. This does not happen with editor callable custom events. Also occurring in Main/4.21 CL #4221482 ...
Crash when naming function parameter 'none'
UE - Gameplay - Blueprint - Aug 23, 2018Naming a parameter "none" will cause crash on compile. Asset may not be able to be reopened. Also confirmed in Main CL 4309299 ...
Editor stalls on Mac after key up, mouse up
UE - Platform - Apple - Dec 19, 2019UDN user reported a performance hit on Mac with the latest Hotfix release when the user is interacting with the editor either through keyboard or mouse input. This performance hit is noticeable whe ...
Niagara Vector Field CPU access Error prevents its use in projects
UE - Niagara - Jan 31, 2020Niagara VectorFields do not function properly since "Fix CPU Access" changes are not persistently saved. After every Editor restart or reopening projects, the Niagara-VectorField driven Emitter and ...
Geometry Collection Actors do not respond with the appropriate Actor nor Component for OnComponentHit events
UE - Simulation - Physics - Solver - Apr 22, 2022Geometry Collection Actors do not respond with the appropriate Actor nor Component for OnComponentHit events. Upon placing a breakpoint after following the steps to reproduce, you can see that the O ...
Chaos Clothing CreateClothActor takes a long time with LODs and Self-Collision
UE - Simulation - Physics - Jan 21, 2024Spawning an actor with Chaos cloth causes a hitch when LODs or Self-Collision are enabled on the cloth. LODs and Self-Collision seem to compound the issue. Self-Collision requires a collision simul ...
[Attenuation][Spatialization] - If speaker output is set to stereo, the Surround 2D Non Spatialized Radius Mode doesn't generate any audio
UE - Audio - Dec 12, 2023If Surround 2D is set as the Non Spatialized Radius Mode, there is no fallback option if the user's output is not a surround format (eg stereo). There is also nothing communicated in the Tool Tip. ...
GPULightmass baking issues on AMD
UE - Graphics Features - Jul 28, 2025Volumetric Light Maps are not generated correctly when baked with GPU Lightmass on AMD GPUs. The issue has been reproduced on RX 9070, RX 9070 XT, and RX 7900 XT. ...
Scene with texture collection crashes when dumping a full memreport
UE - Rendering Architecture - RHI - May 28, 2025A licensee has reported that generating a full memreport of a packaged project which uses a texture collection leads to a crash. ...