Versions: Krastorio 2, v 0.90. Factorio, v 0.18.12
Other mods involved: Factorissimo 2, v 2.4.1
Krastorio not added after start of game
Description of bug: Using the jackhammer while inside of a Factorissimo 2 building allows for destruction of the floor creating a hole that cannot be filled in by any means, and any objects that were on top of the area are deleted. Factory building flooring is not retrieved by jack hammer. (Example/how it was found: https://imgur.com/mwchhr0 )
Expected: For it to not remove the flooring of the factory building (maybe a blacklist of that flooring while using the jackhammer would prevent that).
Crash log: No crash caused (other than to the lab set up my friend made).
