Unreal Engine Issues

Bounds location of apex destructible mesh will not be updated when added to sequencer directly from content browser

Destructible mesh's location will not be updated when added to sequencer directly from content browser, unless two different locations are keyed on the transform track of the mesh. We found the bug ...

Warning in Net.PacketNotify Test

Warning when running the packet notify test, regarding missed acks. ...

Play Dynamic Force Feedback does not work on Android

When trying to trigger vibration through the Play Dynamic Force Feedback node, nothing happens on Android. I tested this on Windows as well with an Xbox Series X controller connected, and the vibrat ...

Moving a static mesh placed across world partition grids does not properly move the foliage instance on it

Outline artefact on cascade shadow transition

Some pixels at the edge between cascaded shadow maps and distance field shadows can be skipped by both, leading to unshadowed pixels. Licensee reports the bug happening in 5.3 as well. Test project ...

Subsurface Scattering Checkerboard with SceneColourFormat 3 (High Scalability) leads to a visual artefact when temporal upscaling is in use

Primarily visible at very low internal resolutions (25-33%), the SSS checkerboard with an RGB scene colour format (r.SceneColorFormat 3) causes a double-image artefact both internally and on the sil ...

Nanite TwoSidedSign is backwards

The value of MaterialExpressionTwoSidedSign is flipped when calculating the Opacity Mask for Nanite meshes. This seems to be a regression in 5.5. ...

Replication default setting of child blueprint resets if parent is compiled

The setting for Replication on a Blueprint variable resets to None of the Blueprint's parent BP is compiled. ...

Changing UPROPERTY() settings causes detail components to vanish in editor

When a UPROPERTY() macro is changed and the recompiled, the hot reload in the editor will cause any BP based on the class to lose certain aspects of the Detail panel such as the actor's transform. ...

Static mesh loses static mesh reference when Alt-dragged in viewport if filepath contains []

Static meshes lose their static mesh reference when alt-dragged in viewport. This only occurs if the mesh is located in a filepath containing square brackets ( [] ) within the filepath name. Additio ...