Unreal Engine Issues
Unreal Engine Issues
Applying Reverb does not work in Audio Volume
UE - Audio - Oct 29, 2019In current and future versions of the engine, the reverb does not work as intended in the Audio Volume Tested in 4.22.3 (CL - 7043647), 4.23.1 (CL - 9631420), 4.24 (CL - 9846303), 4.25 (CL - 98464 ...
Editor crash on Instanced Subobjects of an outer class in Class Picker
UE - Framework - Components - Aug 17, 2021MoviePipeline: Panoramic Renders don't work
zComponent - Archive - Nov 10, 2022Images aren't just under exposed, they have values of 0.0 even in exrs - enabling the Debug Settings and writing out all samples shows the GPU is actually rendering black. ...
[Audio][Niagara] - Audio Spectrum only reacts to Channel 0, despite setting to another channel
UE - Audio - Submixes - Jun 6, 2023While doing some extra testing of the Submix Analyser fixes, I noticed there is a setting to set the channel of the submix to give the analyser. It always works for channel 0, but changing it to any ...
SkeletalMeshActor flickers rapidly when PhysicsAsset contains multiple boxes.
UE - Runtime - AnimGen - Apr 12, 2024SkeletalMeshActor using a PhysicsAsset with custom box shapes may flicker rapidly in Editor when not selected, and also flickers in PIE mode. If occlusion culling is disabled the flickering stops. ...
Flickering shadows/GI when DrawMaterialToRenderTarget is called per tick in PIE
UE - Rendering - Architecture - Jul 11, 2024When DrawMaterialToRenderTarget function is called on tick and actors are spawned in game, the lumen shadow/GI visually flickers. Debugging shows that the lumen screen probes are flickering as well. ...
Modifiers do not behave as expected when adding conflicting mappings of different priorities
UE - Gameplay - Input - Apr 11, 2025Deadlock in UAnimationSequencerDataModel::Evaluate where FScopeLock Lock(&EvaluationLock) blocks execution indefinitely
UE - Runtime - Animation - Nov 4, 2025When both the Sequencer Editor and an Animation Curve Editor are open for the same animation asset, the editor freezes completely upon editing the curve. Analysis indicates that the freeze is caus ...
Distance Field Artifact with Point/Spot Lights with Mesh scaled to 0 on XYZ
UE - Graphics Features - Apr 30, 2015When using a Spot/Point Light with Distance Fields enabled and a mesh that is scaled to 0 on the XYZ will result in artifacts. ...
Auto Align Floor to Mesh causes floor to align well below the mesh
OLD - Anim - Aug 28, 2015NOTE: This is likely a known issue, but I could not find an existing bug for tracking Auto Align Floor to Mesh causes floor to align well below the mesh. Causes the mesh to float I've tried with ...