Unreal Engine Issues

Using the "Keep World" scale rule can result in incorrect relative location when attaching actors

This seems to happen due to a precision error when calculating the relative transform between the socket and the component being attached. Occasionally, one of the transforms will have a scale of (0 ...

Getting Vector Parameter Values from a Dynamic Material Instance with 1 or more vector parameters returns an empty array

This is not a regression. Tested in //UE5/Release-5.0 CL20979098 The array for Vector Parameters isn't getting populated when called from a Dynamic Material Instance. ...

Recompiling blueprint actor in hidden sublevel, after reloading main level, detaches all its child actors

Reproduced 3/3 times, issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. The repro steps are very specific for this; the core issue being that once the top lev ...

shared texture sampler doesn't work in mobile

In mobile preview or android device in 5.1 release, M_SharedTexture_Inst material does not render properly due to exceeded sampler slot limit. there was no problem in 5.0.3 ...

Syncing issue when stopping and blending out a non-looping montage to an anim graph

When syncing from a non-repeating montage that is blending out to an anim graph, the anim montage is marked as a follower due to having its PrevMaker as an AnimBoundary(-1), furthermore in this case ...

TSR ghosting when see through translucent wall

see through a translucent material will cause ghosting  This issue did not occur in 5.0, it occurs when using TSR on UE 5.1 or later. ...

Path Tracing shadow artifacts

First picture lit is used [Image Removed] Second picture PT is used, this occurs under certain angles of incidence. [Image Removed] ...

Level instance edit mode changes actor transforms

Ensure occurs while duplicating world partitioned level by WorldPartitionRenameDuplicateBuilder commandlet

The level seems to have been successfully copied. ...

Custom Water Body does not work with its own Distance Culing

WaterBodyCustom seems not to work with Distance Culling settings on its own actor, either Draw Distance/Never Distance Cull or Allow Cull Distance Volume.  It only can be controlled by the CullingD ...