Hello, The last 3 rolls of films that I developed exhibit ochre irregular stripes or spots that when in the light turn to a stronger yellowish colour. I thought that it would be a matter of exhausted/contaminated fixer, so i open a fresh tetenal fixer mix it 1+4 and also used fresh HC110 from a new bottle to see if it would be the same. So next batch of 3 rolls show the same thing, all of them, others more others less. the images can be scanned and do not appear to deteriorate (yet) although i m sure that with time they will. Yet scanned, the yellowish area shows reduced midtone contrast Usually i leave them in the fixer for about 15 minutes. Sometimes invert the tank frequently, others not this much, and in general i didnt have issues as i d leave them for adequate time in the fixer. Since this happened again even with fresh chemicals, where should i look for the culprit? I always presoak film for 5-10 minutes and rinse twice. I rinsed the tanks etc with hot water, I always rinse the film between developer and fixer 4 times inverting 20 times each, so that I do not contaminate the fixer. What troubles me in general is that those brown areas are irregular and random. other times just on the edges, others running through 2-3 frames of the negatives. I have to note that i developed another batch of 3 Fuji Across 100. Everythiong perfect. Then i developed again 3 Tri X s, each with fresh developer, using vinegar stop bath, and then 30 minutes in the fixer agitating every 5 minutes. Agian, contrasting to the Across films, all TriX had again those irregular yellowish stripes when in light. I took one roll, placed it again in the fixer for aother 20 minutes. still the yellow areas remained and when exposed in light they increased in saturation, till they stabilise at a point. As you can see in the attached files they can either be wide, or just narrow along the edge of the film. both images are from the same roll. any information would be highly appreciated, i ve developed about 200 rolls the past 2 years, and i d get this very rarely, but now this is happening straight with all Tri X and is driving me crazy. I have to mention that i live in Greece and temperatures reach around 40 Celsius. I develop at 20, yet the water tempereature increases gradualy reaching around 23 when i finish development and then stop bath and fixer are at about 29 degrees. Still Fuji Across shows not a single sign of that.