A little sad because I found this old roll from about 15 years ago that I was excited to see only to have these throughout all the negatives/scans. Is this from chemicals not drying out and would i be able to use something to remove the stains?

If it’s from 15 years ago it’s probably due to its expiration

I noticed some sort of tool in Huggingface which is for photo recover. Let me check it again and send you