Is there a way to verify function of all oscillators?

[Beorhtdana]

I bought a used Rev2 and I have noticed that sometimes on certain patches not every note I play will be voiced. For example, if I press the same key 8 times in a row, the first 4 will be voiced and then the next 4 do not.

Is this normal based on the the patch settings or is there possibly something wrong with it? I ran the calibration function and it seemed to complete normally.

[creativespiral]

If you enter the Globals menu, there is a little numeric indicator in the bottom left corner that tells you what the current voice number is.   You can use this for debugging a bit.   I would probably start with Osc Level fully mixed to Osc1 and cycle through each voice on a single key, then swing it to Osc2 full on the mix and do the same and watch that indicator... that will give you detailed debugging info so you can figure out what's going on.   

You might try doing a fresh firmware install of the latest version (1.1.5.9)  and run the "Reset Globals" in the Globals menu, if you haven't already.

Other than that, your best best is to contact Seq support.  They can give you additional options.     https://www.sequential.com/contact-us/

[Pym]

I bought a used Rev2 and I have noticed that sometimes on certain patches not every note I play will be voiced. For example, if I press the same key 8 times in a row, the first 4 will be voiced and then the next 4 do not.

Is this normal based on the the patch settings or is there possibly something wrong with it? I ran the calibration function and it seemed to complete normally.

You probably have cables plugged into the B outputs, unplug them and try again