Unreal Engine Issues

[AI] Pawns loaded from a Data Layer do not auto-register as sources with the Perception System.

A licensee has reported that Pawns that are loaded via a runtime Data Layer are unable to be perceived automatically by Pawns that are not part of a runtime data layer. However, data layer Pawns can ...

Refraction does not pass through Material Function node Correctly

MaterialInstanceConstant doesn't refresh soft references of non-overridden texture parameter

Observed by a licensee: [Link Removed] When a material instance points to a material, and the material is edited to change a texture and the material and material instance are saved, the material i ...

PNG file import does not read R values correctly

Looking at each value of the texture, it seems that the import of the R value is incorrect. PNG:[Link Removed] TGA:[Link Removed] ...

Motion Matching - PoseSearchDatabaseAsyncCacheTask::CreateKey is nondeterministic

This is caused by use of MakeMemoryView on arrays of structures in PoseSearchFeatureChannels.cpp. Need a proper serialization path for hash key gen here. ...

CompileAllBlueprints crashing on blueprint function with a delegate input.

In some scenarios, FPropertyDelegate::SignatureFunction can point to freed memory after a garbage collection run. This appears to be more common when running the CompileAllBlueprints commandlet. ...

Selection of foliage instances broken with nanite

The selection of individual instances of a foliage HISM is broken, so that the instance is correctly outlined but the gizmo is placed over a different instance. If we delete the selected instance it ...

Gameplay ability blueprints cannot be debugged in multiplayer

The object filter in the blueprint debugger can be used to filter breakpoints to a specific instance of an object. This is important for multiplayer because there will be multiple versions of the sa ...

Material fails to compile when virtual texture is connected to opacity mask only through Set/Get Material Attributes

If we connect a virtual texture to the opacity mask output of a material the material will fail to compile. This is expected. However if the opacity mask uses a regular texture connected via SetMat ...

Pose watches don't display correctly with compatible skeletons

"Hello, we've found a quirk with ABP's pose watch and compatible skeletons. Same setup as above. We have skeleton A as the base and skeleton B as a compatible skeleton. They both share similar hiera ...