I didnt tell anyone how to reproduce the bug.
It happens when you have an outside corner stair and put a normal "edge" stair where the lower part is facing the lower part of the stair.
I realize that makes no sense I am sorry. If you somehow understand, you deserve a raise 🙂
it really sucks
I already have an account but this was my friends account
even when placing them in the right direction, they automatically connect