Unreal Engine Issues
Unreal Engine Issues
SkyLight Leaking does not affect reflections when the SkyLight is static but static lighting is disallowed
UE - Rendering - Graphics Features - Sep 10, 2025Reflections do not receive SkyLight leakage contribution from a static SkyLight when static lighting is disallowed. This is caused by the function UpdateSkyIrradianceGpuBuffer checking if the SkyLig ...
SplineComponent - setting roll affects tangents
UE - Framework - Components - Jun 12, 2023Licensee reports issue with setting roll on a spline component control point. ...
Synthetic benchmark is affected by Scalability Settings
UE - Rendering - Architecture - RHI - Feb 19, 2025Sumo Digital Ltd. has reported that the synthetic benchmark has skewed GPUIndex scores when changing graphics scalability settings (i.e. r.LumenScreenProbeGather.DownsampleFactor). They are currentl ...
LevelSnapshots affect level visibility when restoring snapshot
UE - Virtual Production - Tools - Level Snapshots - Nov 2, 2023Slack thread [Link Removed] ...
Level Streaming - Always Loaded sublevel affected by streaming volumes
UE - World Creation - Worldbuilding Tools - Mar 19, 2024The docs mention: "When a streaming Level is set to Always Loaded, it is loaded together with the persistent Level. It also becomes visible at the same time as the persistent Level. It ignores strea ...
Branching Points in a Montage Affect the Rotation Outcome of Root Motion
UE - Anim - Runtime - Mar 28, 2025When playing Montages with Root Motion, the sub stepper extracts root motion transform in small increments. If a Branching Point exists within the interval being extracted, the extraction range is s ...
Having a block in layout before switching to overlay strategy affects the overlay output.
UE - Anim - Mutable - Mar 5, 2026Issue: If "Resizable" Layout Strategy contains a block, it will influence the "Overlay" Layout Strategy. Expected behavior: When using "Overlay" Layout Strategy, it should disregard whatever the "R ...
[CrashReport][GPUCrash] UpdateRadianceCaches
UE - Rendering - Graphics Features - Ray Tracing - May 19, 2025#31 crash out of 7783 in UE 5.7.4 on Windows#3 crash for UE - Rendering - Graphics Features in UE 5.7.4 on Windows#1 crash for UE - Rendering - Graphics Features - Ray Tracing in UE 5.7.4 on Windows ...
ChaosWheeledVehicleMovementComponent is breaking the const CDO contract and changes to the instances are being applied to the CDO
UE - Simulation - Gameplay - Apr 28, 2025As described by the licensee, the const CDO contract is being broken on ChaosWheeledVehicleMovementComponent. The issue the licensee is facing is that by spawning cars with different configurations, ...
GAS: Duration GameplayEffects applying same GameplayCue tag will on authority end all on-going GameplayCueNotifies when first cue expires
UE - Gameplay - Gameplay Ability System - Aug 16, 2024When multiple duration GameplayEffects apply a GameplayCue with the same tag, the network authority game instance (standalone & servers) will remove all GameplayCues with that tag from the AbilitySy ...