Pitch Bend Buttoms

Hi people I’m having problems with my left platter pitch bend buttoms, The plus buttom light some days is on some days is off, this buttom function works but the its light not! Do you know if this is for a software issue? Thanks for all your support denon community

I’ve not owned a mc7000 but could the light be lighting up as an indication that soft takeover is active on the pitch, like how.the green arrow LEDs show up on the top and bottom of the pitch control slide?