Unreal Engine Issues
Unreal Engine Issues
Sequencer animations using Skeletal Mesh Pose don't play properly if following another sequence with an animation using Keep State
UE - Anim - Sequencer - Feb 20, 2019The bug affects skeletal mesh animations when played in sequencer with AnimBP after another animation which was set to Keep State. This is a follow-up to [Link Removed]. Two animations now play cor ...
[MetaSounds] - Trigger inputs called by Execute Trigger Parameter refire on MetaSounds that become active after virtualization
UE - Audio - Aug 31, 2023If trigger execute is called in Blueprint, it will fire every time the sound recovers from being virtual, even if it has not been called again. See video example: [Link Removed] Also occurs in Re ...
Mali offline compiler v6.4 has compiler error in Platform Stats of material editor.
UE - Platform - Mobile - Mar 28, 2019if the build error is not reproduced, please open another material. Error from 4.21.2 version [Image Removed] Error from 4.22 preview 7 version [Image Removed] This is reproduced in Win10 Enter ...
DestroySession Continuously Failing
UE - Networking - Nov 21, 2016The DestroySession node fails each time it is called, and the session is never destroyed. Found in 4.14.0 CL# 3195953 Reproduced in 4.13.2 CL# 3172292. Unable to test in 4.15 Main CL# 3205566 due ...
MemReport does not seem to respect mesh streaming
UE - Rendering - Architecture - Aug 6, 2024The function "FStaticMeshLODResources::GetResourceSizeEx(...)" does not take into account that the buffers might be emptied, due to Mesh Streaming. This causes "obj list" to report sizes larger than ...
Hidden Shadows Aren't Rendered When Raytracing Is Enabled
UE - Graphics Features - Lumen - Mar 13, 2020Hidden shadows aren't rendered when ray tracing is enabled. Found in 4.25 Preview 2 CL#12055273 Reproduced in 4.23.1 CL#9631420, 4.24.3 CL#11590370, 4.26 Main CL#12123513 ...
Duplicated ChildActor on World Partition Streaming
UE - World Creation - Worldbuilding Tools - World Partition - Feb 5, 2024The issue is encountered when streaming a world partition an actor with an AChildActorComponent which generates 2 instances instead of one when run as a client in the editor. This behavior does not ...
Callling "Get[AxisMapping]" or adding AxisMapping Event node in blueprint will break code input implementation for that axis mapping
UE - Gameplay - Input - Aug 17, 2016When character input is defined in code, adding a call to the Get[AxisMapping] node in blueprints causes input for the specific mapping to fail. Note: This only affects code based input, Blueprint ...
"Failed to find object 'Class None'" in project log after creation
UE - Foundation - Core - Nov 17, 2014Users reported seeing the line "LogUObjectGlobals:Warning: Failed to find object 'Class None.'" in the Output log after creating a project. I was able to confirm in a new blank code project without ...
Steam Sessions fails to create when using the Create Session node
Docs - Nov 30, 2021This is a Regression. 4.26.2 - Binary - no issue creating a session. 4.27.1 - Binary - no issue creating a session if you convert a previously working 4.26.2 project. 4.27.1 - Binary - Fails to c ...