The original post says you used DIY bleach. What was that mixed from?
Have you already tried re-bleaching/blixing the negatives using fresh chemicals?
What speed are you running your Jobo?
FYI: I wait until I have four or five C41 rolls to process, then mix fresh chemicals for the batch and process them all within two or three hours. I don't keep working strength chemicals. I use separate bleach and fix (Rollei/Digibase kit) and a 2% acetic acid stop between dev and bleach. I add about 33% to the stated times for both bleach and fix (don't have the exact times in front of me, but whatever it says on the Digibase docs). I wash with 4 changes of water for 30s each between bleach and fix and 6 changes after the fix. I dip the film in the stabiliser by hand (small shallow tray) as I find this helps prevent water marks. This has worked flawlessly for me over the past thirty or so rolls.
Have you already tried re-bleaching/blixing the negatives using fresh chemicals?
What speed are you running your Jobo?
FYI: I wait until I have four or five C41 rolls to process, then mix fresh chemicals for the batch and process them all within two or three hours. I don't keep working strength chemicals. I use separate bleach and fix (Rollei/Digibase kit) and a 2% acetic acid stop between dev and bleach. I add about 33% to the stated times for both bleach and fix (don't have the exact times in front of me, but whatever it says on the Digibase docs). I wash with 4 changes of water for 30s each between bleach and fix and 6 changes after the fix. I dip the film in the stabiliser by hand (small shallow tray) as I find this helps prevent water marks. This has worked flawlessly for me over the past thirty or so rolls.