Question ProBuilder Door Issue

So, I have one wall (cube) that I built with ProBuilder, and am trying to put a door in it. When I delete the faces on one side of the wall, my FPS player is able to walk through that first side just fine. When I delete the faces on the opposite side, however, suddenly the doorway becomes blocked (on both sides of the wall). I haven't had this issue on other walls that I've made doorways for, and I've tried starting this wall over from scratch numerous times, but for some reason I can't get this one wall to work...

 

I think it might be easier to help you if you post a screenshot of the wall in question, and explain what precisely your doing to this wall with pictures.

No matter what the issue, one possible solution might be having each side of the this wall be a different probuilder object. Its unideal but if putting holes in both sides is the issue, then it might work.