Unreal Engine Issues

OpenXR Remoting fails to attach actions to remoting session in 4.27

Regression from 4.26 where actions fail to bind when remoting in 4.27 Repro: using the Microsoft OpenXR Extensions plugin here:https://github.com/microsoft/Microsoft-OpenXR-Unreal/tree/main/MsftOpe ...

Mobile Previewer: Content Scale Factor 0 Issues

There are several reported issues with Save Zones displays in the mobile previewer when the Mobile Content Scale Factor is set to 0.  When MobileContentScaleFactor is set to 0 a couple things hap ...

Mobile Previewer: Safe Zone Invalid Until Window Resize

When the Mobile Previewer loads, the Safe Zone widget is not working properly at startup, and requires a window resize to update to the correct Safe Zone. ...

Setting replicated TArray in PostLoad prevents repnotify from being called

See linked UDN for more details and a sample project reproducing the issue. The issue seems to be that the object's archetype doesn't have any changes made to the array in PostLoad, so the shadow st ...

Once an actor channel is closed by NetCullDistance, root motion movement synchronization stops working

Properties that uses DOREPLIFETIME_ACTIVE_OVERRIDE (ex. RepRootMotion ) will also skip replication when an actor channel is newly opened. This means that if the variables on the server side do not c ...

Ray tracing in sequencer causing AO ghosting

HLOD not working in sublevels in cooked build when Save LODActors to HLODPackages is set to true

SingleLayerWater is rendering brighter shallow water with fog

Shallow water areas in scenes with exponential height fog will be brighter than they should be. Possibly due to the fog being applied twice in the SingleLayerWater shading model. ...

Texture Array "reimport" button does not update textures

Crash when capturing attribute spreadsheet of Niagara GPU Particle with raytracing enabled

Also, NiagaraDebugger crashes the moment I enable GPU Particle Readback. ...