I developed a roll of HP5+ this evening and found something unfamiliar when I pulled the film from the reel.
As you can see in the image, there's some opaque milky streaks on both edges of sections of the film. The images themselves seem fine, but when I ran my fingers along the edge, my fingers picked up some black residue - my guess is that it's the edge markings printed on the film.
I've never encountered this before. My intuition says underfixing, but even if I'm right, I'm not sure how to avoid it in the future because it seems more about distribution than time.
Anyone recognize this sort of thing? Recommendations for avoidance or film care after-the-fact? (It's currently drying)
Potentially relevant details: ~600ml Patterson tank and reels, film was in the bottom reel, with an empty reel on top; 7.5 min ~300ml HC-110 Dil B @ 20°C; water for stop; 1+4 Rapid Fixer 5 min; rinse + photoflo