MZ/MuZ Riders

thought i would run this by you lot and see if there may be an issue ,2008 baghira and little under 6000 miles,when i change into 2nd sometimes it will drop back to neutral and on occasion when going up to 3rd may drop to second.
any known issues with box or is it as i suspect just a lazy rider/lever set too high . going down through box is fine,cheers

my rt125 has been doing this when i get lazy on moving my foot when shifting
but at 20,miles in 10 years i have got tired of shifting
the 125 run very nice .. itjust requires a LOT of shifting
dave