[BUG] CTD - 2 Mines built over each other.
Hi,
I could play for a while (~30 min), won against a sovereign, built a second city, built mines in it (but couldn't place them where I wanted to, 2x2 tiles seem to be buggy here). When they were finally built, I wanted to enter the city again -> CTD.
Possible cause: 2 mines were overlapping, because it didnt't show, where they were to be built.

