Im having the same issue, except for me they are not even in the coffer list.

I had 2 large (cat statue and bountiful chest) and 2 small ones (harp and horn).
None are listed in the coffers. The 2 large ones are gone and the 2 small ones are still there, but not showing in the coffer list any longer.

Edit: I was able to pick up and replace them to get them back into the ledger. Same with the others have said, remove the foundations and they are there…but it was a pita to remove and rebuild everything. Please get this fixed asap