Feared that may be the case. Guess I’ll strip it back to the gearbox stages and see if I can wiggle out the friction, and give twoofive’s 16/16 solution a go as well
I’m also having the same issue. Engine works fine in reverse and gear 1. Anything higher than that however none of the gearing moves and just makes a clicking noise. Took it apart, all correct but still the same issue