I have limited maintenance knowledge so go easy please.
My nds crank arm fell off recently and broke the pre-load bolt (SLX). I got one from my LBS (cheers Edinburgh Cycle Company) and fitted it. I then noticed there was a lot of play in my cassette so after some research I realised it was the freehub (Mavic Crossride) so I ordered one up and fitted it last night. Out on the bike today when I stopped pedalling the cassette kept turning which in turn bunched up the chain. If I took my feet off the pedals they would keep spinning. Are these previous issues to do with my current issue.
Ps. It was only in some gears I couldn't freewheel and there is still a tiny, tiny bit of play in the cassette.