hi @ArcaneStudio ,
Please look at he documentation which is unique to UEFN import from FAB
Import from the Fab Marketplace in Unreal Editor for Fortnite | Unreal Editor for Fortnite Documentation | Epic Developer Community
Check if this causes the same problem.
If you import an UE5 standard engine asset directly, this will be marked as a “Found a disallowed asset”
in the UEFN logs and bits will be missing