I'm sorta new to developing but have processed about 10 rolls of 120 and 35mm B/W film myself in the past few months. The roll I just developed last night turned out to have some major problems, based on the look, my guess is light contamination. On this roll of 120 it looks like about 6 of the exposures suffer from this problem. According to my log all of the problem exposures were shot with the same lens. But some of the frames shot with this lens don't appear to exhibit the problem.
Here is a link to a page showing two of the frames that I've scanned. I made no attempt at nailing the white and black points of this scan so ignore how flat the image is.
These were shot on my old Koni Omega Rapid 200. The last time I used this camera with this lens everything seemed to be ok.
So my question is: Does this look like a camera problem, or more like I somehow let some light in while loading the film into the magazine?
Thanks in advance for any suggestions.