Unreal Engine Issues

Editor-only blueprints like WidgetBlueprint are not added to cooked asset registry class hierarchy

Both the Asset Registry and Asset Manager look for all subclasses of UBlueprintCore and use that to search for blueprint classes and construct an inheritance hierarchy. This always works in editor b ...

Multiplying CompleCollision by inverse scale does not create a collision

If multiplying a mesh with ComplexCollision by inverse scale, the geometry may not be created on the mesh. This may depend on the assets of the mesh. In the sample example, the navmesh is not create ...

Calculating LLM of Audio tag in AnimationStreaming.

 In the following section, AnimationStreamingManager incorrectly adds in Audio's LLMTag.   void FAnimationStreamingManager::UpdateResourceStreaming(float DeltaTime, bool bProcessEverything /*= fals ...

Undoing Level visibility change causes levels moves to wrong world origin offset

changing level visibility causes levels moves to strange position when using world origin shift

Selecting another level while the level is hidden cause the level moves to incorrect position. it occurs only when using world origin shift in world setting. ...

FPlatformMisc::RequestExit freezes app in IOS

See the UDN question (duplicated below). I think we need to better manage the lifetime of the event we use for synchronization here. We are experiencing an issue where when FPlatformMisc::Request ...

[Merge Actor] Lightmap UVs are broken after merging meshes

This issue occurs when merging static meshes that have multiple LODs. If they are using UV1 for lightmap index, after merging, the UV1 of the result for each LODs will all be differents, making the ...

Unicode BIDI control character effect has not been applied to an auto wrapped line

When another AnimMontage is playing while an AnimMontage is playing, AnimNotify be called twice.

When AnimNotify is set to AnimMontage, these Notify events may be output twice. It can see it if you let another Montage play while the first one is playing. If you stop the first Montage, it will a ...

There is odd Cursor Snapping in Ortho Views when objects are translated or rotated using gizmos

Creating spline points requires interaction with the translate gizmo, and as soon as the new point is created when in an orthographic view, the cursor snaps back to the starting gizmo position. Thi ...