The first thing I noticed was your wash times are a lot shorter than the ones I give. The intermediate steps in my experience should never be less than 3 minutes (except the one between the developer and bleach and the final one. 6 minutes before putting it in the stabiliser.

I live in a moderately 'hard' water area. i.e. it has a high lime content and this will leave drying marks unless you are meticulously clean. Try extending the washing/rinsing times and then get back to say what you find.