Probuilder Tesselation cracks between two models

If I have two planes of the exact size but a different number of quads then I will get seams between the two models. For example: a wall and then another wall with a door cut out. I have done some testing and this seems to happen because of the triangulation on the quads. I could fix this by exporting a probuilder plane and then manually making the tris, but I would like to find a way to avoid this step as the whole point of using probuilder is to quicken the process of making our levels. Has anyone ran into this problem before? Quicker solutions?