
If I use the shift+F12 menu I can lower the building to find the Gorillo kind of down below in the acid... Lowering the building manually doesn't work as the Gorillo stays where it is and that also leaves a bunch of floating bone piles. All the items around are also in their default positions, as in where they were before the building rose up.

Here you can see the Gorillo and all the items as well as the bone piles.