Unreal Engine Issues

Replay streamers missing Flush implementation

The HTTP Streamer does not implement the Flush call on the streamer factory. ...

When Niagara is set to DesiredAge in Sequencer, the processing load increases after play

This does not happen in 4.25.4. It has been confirmed to occur with 4.26.2 and UE4main. After playback is complete, a large amount of stalls can be seen in Insight. ...

[CrashReport] FTaskGraphCompatibilityImplementation::ProcessThreadUntilRequestReturn

Generated from CrashReporter ...

DistanceToNearestSurface used for post process broken when separate actor culled

This one may not necessarily be a bug, as this is related to the nature of culling. If it is not, please let me know if there is an alternative method the licensee could use here in order to track a ...

Objects in AR not synced well with camera movement on iOS

bUseAsOccluder not taking effect when prepass is disabled

See the licensee discussion for details discussed with [Link Removed] ...

Editor hard-locks when deleting a level converted to World Partition

Encountering an editor hard-lock when attempting to delete a level converted to World Partition. I'm unable to reproduce this hard-lock if the level is created using World Partition, only post-conv ...

StaticMesh - CustomDepth breaks occlusion culling without custom depth enabled

Handheld AR: Session fails to Start after minimizing/backgrounding the application

When the user minimizes or backgrounds an AR application, and re-opens it, new AR sessions will fail to start ...

VolumetricLightmap doesn't work when shifting a level by world origin rebasing

VLM is not handled when rebasing. The following workaround works. void SetupPrecomputedVolumetricLightmapUniformBufferParameters(const FScene* Scene, FEngineShowFlags EngineShowFlags, FViewUniform ...