I actually like exploring tombs, but unfortunately a lot of the vanilla tombs are bland, and seem painfully rushed and unfinished, in particular the ones in China - the dragon temple is basically nothing but a whole bunch of ridiculously large and empty rooms. So, I've taken to making a lot of edits to them.
I already did a similar thing with some tombs in Egypt. They were built in a different savegame, and I deleted the default lots for my current save and replaced them with my redone ones. However, this seems to have broken the adventure system, as I cannot seem to get any location specific adventures for Egypt to trigger at all. I expanded the default designs of the tombs and absolutely did not touch any of the default switches, chests, dive wells, etc.
So... I'm kind of stumped here. How do I make replacement tomb lots work across different saves? What did I do wrong? Please help!