Unreal Engine Issues

After breaking a level instance without Actor Folders, moving its actors between folders of the world-partition map does not work correctly

If a standard level (without Actor Folders enabled) is added to a world-partition map (with Actor Folders enabled) as a Level Instance, and then that instance is "broken" so that its actors are inco ...

After Seamless Server Travel, the Client cannot move the character or see the Server character

After Seamless Server Travel, the Client cannot move the character or see the Server character. On the Server, the Client character appears to be falling in place. Tested in both first and third per ...

Foliage rendering issues when using both Density Scaling and MaxWorldPositionOffsetDisplacement

When a material with WPO effects and MaxWorldPositionOffsetDisplacement is applied to a foliage mesh, foliage applied to a map will no longer work as expected with density scaling, especially after ...

Blueprint compile fails after changing the default values of a struct that is part of another struct that makes up a Data Table that is used within the Blueprint.

Changing the default value of a struct that is included as an array in another struct can prevent any Blueprints that use a DataTable made from the second struct from compiling. It appears to be a p ...

Static mesh cube with 3 convex elements jitters when enlarged and settling on a convex static mesh at 30 FPS

Niagara Data Interface "Errors and Warning" section on Module Details not updating when error messages change

This is a regression: it worked correctly up to UE 5.5, but not in 5.6 or mainline latest. Possibly caused by CL 40093049. Class UNiagaraDataInterface provides virtual method GetFeedback(), which a ...

Memory Leak When Raytracing Enabled with Specific Rendering Settings

When a shipping build is packaged using specific rendering settings a memory leak can be observed. The licensee has noted that this leak presents as a 10MB per hour increase in RAM usage. It has a ...

Trace complex for assets simulating physics does not show accurate collision

When using Trace Complex in a LineTraceByChannel node does not give accurate results when object is simulating physics and scaled. The scaled root mesh in the BP will only register its collision rat ...

Changes made to default values in a subobject nested within a subobject are not propagated to child Blueprints

When a Blueprint contains multiple layers of nested subobjects, any subobjects below the top-most layer do not have changes to their properties propagate to child Blueprints. See attached project (c ...

Make Writable button does not work as intended when using Subversion

When using the Make Writable button, it is intended to make the file editable without the prompt to check an asset out popping up on subsequent attempts to save the asset. This does not work for Sub ...