Unreal Engine Issues

New 'UncookedOnly' modules can incorrectly be included as a build dependency after nativization of a Blueprint asset

The new 'UncookedOnly' module type that was added in 4.24 is not visible to Blueprint nativization, and thus it does not know to exclude these module types from the generated Build.cs file when they ...

UMG Calibri font space between characters changes depending on the onscreen size of the textbox containing it

Within a UMG Widget Blueprint. Calibri font space between characters changes depending on the onscreen size of the textbox widget containing it. ...

Error when zooming out in orthographic view in 5.4

In 5.4: zooming out far with the mouse wheel after setting the editor viewport to orthgraphic view triggers an ensure: ensure(InOrthoZoom >= MIN_ORTHOZOOM && InOrthoZoom <= MAX_ORTHOZOOM); Th ...

Crash opening FaceARSample on iOS

FaceARSample is crashing as soon as it is opened on iOS. Tested on a iPhoneXS 12.4.  Regression: Yes I was able to get FaceARSample on the same device the previous release 4.22. ...

Light Leaking With Raytraced Shadows On Lights With Non-Zero Source Length

Light sources which have the source length attribute set to a value greater than zero seem to be leaking light through occluding geometry (see the image below and repro project). Moving it away from ...

AI MoveTo Blueprint node will zero velocity on Pawn when called, causing a freeze if the Pawn is already moving

AI MoveTo Blueprint node will zero velocity, causing a stop when a new destination is set if the Pawn is currently moving. Regression: Yes Worked: 4.12.5 (CL 3039270) Broken: 4.13.1 (CL 3142249) F ...

PostRepNotifies may not always be called

FObjectReplicator::UpdateUnmappedObjects calls  CallRepNotifies, but does not call PostRepNotifies. Further, the order of CallRepNotifies and PostNetReceive in FObjectReplicator::UpdateUnmappedObje ...

User created OSS plugins require modifying Engine now

This was discovered in live build and posted in UE Forums that based on changes to OSS, users (binary specifically) can no longer create their own OSS plugins as it requires modifying the Engine Sou ...

Foliage meshes doesn't follow the geometry planted on

Transformed convex collision generates wrong navmesh

[Link Removed] The mesh in the repro project contains a transformed convex collision, which can be moved freely in the mesh editor, so the transform must be applied in following code block. (Also se ...