Ok, so, I just remembered something, which is less of a bug, and more of a QoL / design issue.
If memory serves it's an issue with the central door as opposed to the left/right doors, and I will proceed as such, though anyone still playing alpha feel free to check and correct me.
If you use a walkway attached to a central door panel, turn a corner and head towards another wall with a door not only can you only connect it to the panel if the door is in the right place, once you reach said wall panel it's only a half-distance between the end of the current panel to the start of the wall. Since all walkways are set as a 2 - 1 length of the wall panels for every 2 pieces of walkway you get 1 piece of wall, but the central door is 1.5 walkways into the wall panel and as such will cause overlap when trying to corner to another wall that's perpendicular to the first.