For what it's worth, I found the same "issue" in the catacombs as well.
If it will be fixed in the next patch then cool but just in case, here's more screens.

I tried to follow the link about submitting a but at http://bitkidgames.com/portal/ but it just takes me to the Chasm main page. So maybe I'm dumb but I'll put this here instead. The bug I've encountered is as follows; In the Mines, there is a room on the map that says it's a door to the Gardens but...