This is a related bug to this interchange fbx one [Link Removed] that is also triggered by reimporting a 5.7 mesh in 5.8
It looks like the asset import data has a property called `node_unique_id` and its format was changed in 5.8, and interchange no longer supports the the 5.7 format.
5.7 format: `Factory_\MeshInstance\RootNode.MyShapes.pCone1`
5.8 format: `Factory_RootNode.MyShapes.pCone1`
Expected: the cube reimports with no issue
Actual: toast error is raised "There was nothing to import from the provided source data using the chosen pipeline options."
You can also repro it without the "Asset Type Sub Folders=on", if you add a new mesh to the fbx between reimports
[Link Removed]
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-403625 in the post.
| 0 |
| Component | UE - Editor - Open File Formats |
|---|---|
| Affects Versions | 5.8 |
| Target Fix | 6.0 early access |
| Created | Oct 16, 2026 |
|---|---|
| Updated | Oct 19, 2026 |