Unreal Engine Issues

"Always Center Window to Screen" No Longer Functioning in New Editor Window (PIE)

Regression: In UE4.10, the border that now occurs around New Editor Window causes window to extend beyond native screen resolution designated in Editor Preferences causing the window to 1) Not be ce ...

Editor Crashes On Startup After Enabling Light Propagation Volume (LPV) With Forward Shading

After enabling Forward Shading that project can no longer operate while "r.LightPropagationVolume = 1" since it will crash immediately. ...

Sequencer spawned blueprint functions/variables not firing with correct values on begin play

Created in relation to https://udn.unrealengine.com/questions/405764/is-it-possible-to-set-sequencer-spawnables-propert.html Issue relates to behavior of the Event BeginPlay and the propagation of ...

Snap To Grid doesn't function in the Static Mesh Editor's Perspective View when moving Sockets

When moving Sockets around in Orthographic View with Snap to Grid enabled, Sockets snap to the Position Grid Snap value when moved along the Grid. In Perspective View this is not the case and moving ...

UnLit materials are not masked out on mobile deferred lighting pass with depth prepass enabled

Calling RemoveAllAnchors function on a non-clustered geometry collection falls extremely fast

Non-clustered geometry collections applied RemoveAllAnchors are not put into FPBDRigidsSOAs::DynamicGeometryCollectionArray, so acceleration is not reset every tick and they fall super fast. The fol ...

Backwards-compatibility broken for the CDOs of Python-generated Unreal Types because of missing redirectors

Previously, all Unreal Types generated by python scripts would be created inside package "/Engine/PythonTypes". This was changed by [CL 32478991 in ue5-main branch], which meant to "remove the restr ...

Volumetric Lightmaps Persist When Opening Different Level

When moving between levels with built lighting volumetric light maps persists between levels. Workaround: Load the same level twice. Found in 4.24.2 CL#11100242 Reproduced in 4.26 Main CL#11574810 ...

[Feature Request] Add material node or function to easily support AR passthrough camera

See the UDN link. This is currently possible with some material work, but should be made more robust to automatically look up the passtrough texture resolution and to deal with apps deployed in por ...

Sphere Trace Distance Field GPU function hides necessary Collision DI input

The collision DI input is a hidden input, but is necessary for compilation. The input node should likely be marked as required, not hidden.  ...