Hi on my rme the osc 3 seems to go in an out of pitch by its self and osc 1 seems to not be tracking with the others any way i can fix this.
My guess is that the synthesizer needs calibration. To calibrate you need to do a long procedure which involves moving several trimmers inside the synth.
There is a guide here: https://groups.yahoo.com/neo/groups/KnobTweak/conversations/messages/940
You should, however, get in contact with Moog support since this might not be the case…