https://imgur.com/VQ2zY8c I've replaced this wall many times and even added multiple caulk brush with the texture on the same wall and it still won't fix... pls halp me

Any "node without volume" errors in launcher?
Any other launcher errors when compiling?

The only compile error I get is Overlapping path nodes and whats even stranger is the triangle it makes comes from to different walls.

Make sure the brushes are all aligned and snapped to grid and have caulked faces and mitered edges.
Try making it into a structural caulk brush, then make a patch on the bad surface and texture it.
If neither work then send the .map to me and i will fix it.