My recent 1P any% run got rejected because some of the levels were grey at the end of my run, because I got the rank F in them. Does that count as completing a level or do I have to get the green gems for those levels to count ?

Sorry, I did not see that those had been completed. I saw gray and just assumed. I don't know if it's possible to verify a previously rejected run, but if you re-submit it, I'll verify it. Sorry for the inconvenience.

EDIT: Apparently Mistakes updated the rules, so never mind.