Been having this recurring issue with some of my Kallitype prints where the mid tones get these light or white spots after drying down. I've noticed on some of them there appears to be a small speck of something in the center. Most all of my chemicals are mixed fresh, and they don't show up during the developing, clearing or fixing stage, only after dry down. They also seem to get a bit worse after a couple of days just sitting around. I recently mixed up some fresh Ferric Oxylate to see if the batch I was using had any issues, but all the prints look great even with old FO, and still not till after dry down. Anyone had similar issues or can shine some light on this would be greatly appreciated. I would post samples but my scanner has been loaned out, and besides, would be hard to see from a scan. They are quite noticeable though.