To reproduce:
-Import a .fpk
-Import a .fpkd that references assets in the .fpk
-Open one of the newly-imported DataSets.
-Observe that none of the StaticModels appear.
-Reimport the .fpkd
-Observe that the StaticModels now appear.
The issue appears to be with imported assets being immutable. Not sure this is currently fixable. For now, the workaround will have to be making editable copies of imported DataSets.
To reproduce: -Import a .fpk -Import a .fpkd that references assets in the .fpk -Open one of the newly-imported DataSets. -Observe that none of the StaticModels appear. -Reimport the .fpkd -Observe that the StaticModels now appear.