I found the issue.. on Flickr.
When I had grinded the hole for the lens, the whole aluminum piece heated up more than a few times, and in doing so warped the aluminum piece so the two halves weren’t flush. I found this out by taking the film pack out and flashing a light around until I found the leaks. Should be good now. I fixed it temporarily with gaffer tape!
Apparently when you have these “clouds” of blue, that is a possibility that there are pinhole light leaks in the bellows, or in my case, gigantic leaks in some part of the construction.. when the light hits just right through the cracks it can do this.
Polaroid 360 + Rodenstock Ysarex 127mm f4.7 manual lens conversion + Fujifilm FP-100C pack film.