Unreal Engine Issues
Unreal Engine Issues
OnComponentBeginOverlap and EndOverlap are called multiple times when moving in a Skeletal Mesh component's collision
UE - Simulation - Physics - Jul 7, 2015OnComponentBeginOverlap and EndOverlap are called multiple times when moving in a Skeletal Mesh component's collision. This does not occur with a Static Mesh's collision. Test project available her ...
Overridding a function with no return value in a ChildBP produces an event instead of a function
UE - Gameplay - Blueprint - Dec 17, 2015If you have a BP with a function that has no return value, then override that function in a ChildBP, it becomes an event and cannot be used like a normal function ...
Rotation Not Always Replicated When bUseControllerRotationYaw is Set to False
UE - Networking - May 19, 2017Rotation does not always appear to be replicating when bUseControllerRotationYaw is set to false on the Character's class. This seems to occur 4/5 times. There are the occasional times where telep ...
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 ...
Build lighting for single stationally light level generates a shadow map in PF_B8G8R8A8 format
UE - Texture - Nov 1, 2024Texture format override to BGRA8 due to changes in CL-30603716. The following code can restore the previous behavior. void FShadowMapPendingTexture::StartEncoding(ULevel* LightingScenario, ITexture ...
Reflection capture doesn't work when using Lumen GI and SSR
UE - Rendering - Architecture - Mar 24, 2025Reflection Capture does not appear to work with Lumen + SSR. Licensees have reported that there are cases where they want to combine Lumen GI, SSR and Reflection capture for quality and performance ...
Forward Rendering causes Volumetric Material to not render against background
UE - Rendering - Features - Nov 15, 2022Regression: Tested in UE5/Release-5.0, and the issue is reproduceable. This issue appears to occur when the SkySphere is deleted from the level, as leaving the SkySphere in the level causes the Vol ...
"Distance Field Resolution Scale" in Build Settings is set to 0 by importing assets via "Import into a level"
UE - Editor - Open File Formats - Import and Export - Mar 18, 2022"Distance Field Resolution Scale" in Build Settings is set to 0 by importing assets via "Import into a level". That causes not to genarate any distance field meshes of all assets imported via "Imp ...
[CrashReport] Linux crash - /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so()
UE - Platform - Linux - Nov 16, 2017This is a new Linux crash in 4.18.1. There are a few similar but different callstacks that reference dri/radeonsi_dri.so() I've attached a log, but none of the ones I've looked at appear to contai ...
Material base color is lighter on Nanite meshes when using 16-bit GBuffer
UE - Rendering - Features - Nanite - Aug 6, 2024The base color is brighter on Nanite meshes than non-Nanite meshes when GBuffer Format is set to "Force 16-bits per channel" (r.GBufferFormat 5) even though the meshes are using the same material. ...