Unreal Engine Issues

BakedSourceTexture missing from Sprite in packaged game

The UPaperSprite::BakedSourceTexture will be nullptr in a packaged game if the sprite is not referenced by the UGameInstance.  The attached sample project demonstrates this scenario. ...

Translucent light grid injection behavior

Light injection into the Translucent Light Grid voxels does not use the correct location for clipping or attenuation. Both of these points are outside the voxel that is being updated. Light attenua ...

No warning given when a subobject is registered to a component not using the registered subobjects list

AActor::AddReplicatedSubObject will ensure in this case if the actor doesn't set bReplicateUsingRegisteredSubObjectList, but there is no equivalent check in AActor::AddActorComponentReplicatedSubObj ...

'prefix parameter names' checkbox in a material function's settings does nothing.

Prefix Parameter Names checkbox does not work as expected, and the Group names are unmodified. The value "UMaterialFunction::bPrefixParameterNames" does not appear to be used anywhere in the Engine ...

Mobile Deferred Shading enabled and Preview Level Android Vulkan will crash the editor

Windows Game Input - DualSense/DualShock controllers DPad button repeat events behave unexpectedly

Direct Link is not finding source - macOS Sequoia

Direct link with macOS Sequoia seems to be broken as Twinmotion cannot detect the Direct Link source, it seems the data is properly written in the cache directory. Update: Another user reports th ...

GeneratePsyms fails with installed builds due to missing dymp_syms tool and incorrect path space handling

Uncovered while testing [Link Removed] ...

External Actors can hold stale references to Blueprint classes as edited instance properties

When a component is removed from a class that exists as an instance with external actors enabled, a deleted BP component on an actor will remain referenced by the instance. Disabling External Actor ...

Skeletal Mesh Customizable Object Node does not warn of changes to mesh sections.

When reimporting meshes with changes to their material sections, specifically additions, there is no indication that there will be an issue on output of a generated mesh. Ideally, we can watch for a ...