The gun is clean and I have been cleaning guns after every outing for over 50 years now.personally I think its a reliability issue addition, the mag ejector.
MOST people who get a 10/22 never clean it, and if they do clean it, they never clean those annoying little bolt parts. For most, IF they take the stock off, and pull the bolt, they just wipe the outside down.
In my first post I stated it was slightly used with a BX trigger.
I do believe it is a mag ejector issue as some mags seem to have very few if any problems and others are just a PITA.