Unreal Engine Issues

[Legacy][FBX] Animation curves are not added to the skeleton anymore

[Interchange][FBX] Import of Collision with combine static mesh is different than with legacy

With Interchange, the combined meshes should not include the Collision mesh. Also the combined meshes should use the collision mesh as their collision. cf. [Link Removed] ...

Unwanted offset on curves when importing animation assets

Hello, We seem to have encountered some unwanted behaviour when importing certain curves from our animation fbx assets into Unreal. Some of these curves don't have keys from the very first frame, b ...

Open Formats: Interchange Import PIE - Importing static mesh while a PIE session is running permanently breaks nanite on the asset

Importing a Static Mesh during PIE can cause it to never enable Nanite, even if it reports that Nanite is enabled. To re-enable Nanite on the mesh, the asset needs to be deleted and imported again ...

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 ...

5.5.4 - Morph targets 1 frame offset

Morph targets work! Yay! But found another issue. Basically import an fbx with multiple animated morph targets applied to it. The morph change shape over 1 frame and for some reason in 5.5.4, there' ...

[Interchange] No data imported when trying to import animation only on a previously imported skeleton.

Open Formats: Interchange Import - UCX Convex Hull Import Bug

When importing custom UCX collision meshes from FBX files into Unreal Engine, certain geometry profiles fail to generate correctly if the option "One Convex Hull Per UCX" is unchecked. The engine's ...

Morph target normals not correctly applied when imported as LOD 0

This is a regression since 5.5 with skeletal meshes where morph target normal/tangent deformation only works when a mesh is imported as a LOD of an existing skeletal mesh, but not when imported as L ...

Compatible Skeleton Animation does not retarget the same on duplicate skeleton

If a mesh is exported from the engine, reimported as a new skeleton and mesh, and then marked as a compatible skeleton. Animation will have slightly different rotations playing on the skeleton. ...