After opening a door, characters can't get into the room that was just unlocked (invisible wall). This happened on all characters of my run (cartie, shroom, sweeper, none was able to enter the room they were all similarly stuck by the invisible wall).
Opening new doors, completing waves and doing research did not help. My game is now soft locked because I cannot take any more actions.
PS : I'm french so if needed you can get back to me in french or english.