Unreal Engine Issues

Curves do not scale with modified animation length at reimporting animation with new interchange importer

In UE 5.5, "Open Level By Name" is not able to find the map if the map is not added to "List of maps to include in a packaged build"

The "Open Level By Name" is not able to find the map to travel when the map is not included in the "List of maps to include in a packaged build" option. This issue was not happening in UE 5.3 and UE ...

Duplicating many Actors at once in a Level Instance while in Level Instance Edit will result in a jumbled mess of Actors on the Persistent Level

Duplicating many Actors at once in a Level Instance while in Level Instance Edit will result in a jumbled mess of Actors on the Persistent Level. The licensee has encountered this in Unreal 5.4 and ...

Incorrect mesh deformation when Max World Position Offset Displacement used

When Vertex Animated Texture is used to animate a mesh with World Position Offset, often the Max World Position Offset Displacement Material setting must be increased or the Bounds Scale increased, ...

Iris - incorrect initial state in pawn's BeginPlay if replicated via huge object path

This occurs when the pawn is initially replicated using the huge object path when first connecting to a server. Destroying and restarting the client's pawn works as expected. After connecting, the c ...

World Partition grid priority setting taken into account last

From licensee:Editor Grid priorities setting will get overruled in code giving the user false feeling of control – smaller grid cells can load before larger grid cells on the same layer even if the ...

Mover ensure triggered when engine is running in the background

When the engine is running in the background, the following ensure may be hit in NetworkPredictionService_Interpolate.inl: npEnsure(ToFrame == INDEX_NONE || LocalFrame - ToFrame < Frames.Buffer.Cap ...

DMX component in world partitioned level fails cook

Since UE5.5, RegisterComponent has been called during cook process, So unnecessarily references from DMXLibrary to DMXComponent has been added.  There is a workaround to avoid adding references : ...

Converting a modular character to a static mesh can result in a crash or in an asset with corrupted data

Mirror operation on Physics Asset produces wrong results for constraints, including flipped axes

The Physics Asset Editor has a "mirror" feature that allows physics bodies and constraints to be mirrored from one side of a skeleton to the other. If this operation worked correctly, it could save ...