My V1 QMX has since the same thing since day one, over several different firmware versions. It affects the left encoder on mine rather than the right. It seems the software debouncing of these could do with a bit of tweaking. It's mainly noticeable if I try and turn the encoder one step ccw to change menus when it often changes then bounces back... Not the end of the world, but a bit nippy.
Cheers,
Ronan
MM0IVR?
