Mods: Autobuild, Factorissimo 2 notnotmelon fork

Steps to reproduce:
1. Build a factorissimo building
2. Put anything in it
3. Pick it up
4. Put down a blue print of a factorissimo building
5. Autobuild places building, taking the existing one from inventory
6. Step in to building

What I expect to happen: See the content put into the building from step 2

What happens: See and empty building

Note: When using the factory search mod to search for items inside the building, it still finds them, so the original building surface is still intact but the building is disconnected from it.

Thanks for the report.
I never tested this mod with Factorissimo mods, so I would say, that it's not really supported.
Autobuild simulates the building of the entities by hand, so it might be problematic to build the contents of the F-building from the outside.

Currently, I have no plans to investigate much in that. Maybe some day in the future...