Thanks. Not sure, the same texture is visible on the negatives. I'm pretty picky with managing temperature for all baths when developing but maybe some spike during washing? That or that it took more than a year before I developed it after exposure?
@Oscar Carlsson I've seen this using older expired films, where it appears as though there's an imprint of the texture of the backing paper on the film surface. I've had it with old Foma and Forte films. I hope it works itself out.
Ah. The film (Rollei RPX 100) might have been a few years old. I've shot a lot of this film without issues like this, so I'm not very worried about it. I've started shooting FP4+ now as well (it was cheaper last time I ordered more film) which I'm very confident will be without issues as well