I scanned 2 rolls of film that I developed last night. It was a Kodak Tri-X and Ilford Delta 400, both are about a year past expiration date, but are cold stored since I had them. What I did was I developed them in stock Xtol for about 7 minutes and 10 seconds agitation every minute. After developing I washed them with water for about a minute, I did not use the stop bath that I have since in my previous sessions all I developed without it came out fine. Then Kodak fixer for ten minutes, after that I washed it again for 10 minutes and applied Photo Flo last. Only the Tri-X showed these spots. what could it be?