I got 2 bugs to report. They share the same problem, but the second is a lot more bizarre and confusing.

First Bug: Unpressable Buttons

On one of the Tomb floors i ran into a room where pits and indestructible barriers blocked my path. There were two one-time-activation buttons, one located on the top left and the other on the bottom right of the room, that i guess were either supposed to lower the barriers or raise the sand in those pits.
Unfortunately, they were already in the "button pressed" mode, so i effectively got stuck when a hermit card teleported me to the shop on other side, while the boss room remained on the former.
This would've gotten me stuck, but i got lucky and had a secret room connect the floor back together.


Second Bug: Room Fusion

This is where it got bizaare. I was still on the same floor as above, and was about to leave after that near-disaster, when i remembered i hadn't beaten Narcissus II yet.
One of the rooms connecting different branching paths had trap sentries on the top and bottom walls.

So far so good.
I beat Narcissus II and headed for the end of the floor. Only there was a small problem.
The room i just mentioned was necessary to go through if i wanted to get to the boss room.
And it had somehow fused with the layout of the room from the first bug.
With the same problem. The buttons were already activated, but the barriers were still there.

The sentries were still present aswell, but where was formely a trap tile to activate one was now a pit.

This was the point where my luck ran out since I did not have an item that granted me flight, and the secret room was already found near the first bug room. So i had no other choice but to reset the run.

EDIT: I just remembered that the floor had "Curse of the Maze" on it. Perhaps that was the perpetrator for the fusion.

I hope my description can help you fix this issue, Team Revelations.
I can also provide screenshots if necessary.
Due to the unexpected nature of it i only have a screenshot of the transformed room layout for Bug No.2 though.