Mono MkII, Audio rate not following Osc1

Hey, quick question about the Mono MKII and X-MOD behavior.

Maybe I’m missing something, but in my unit the X-MOD doesn’t seem to track the oscillator frequency.

According to the manual:

“At audio-rate you get a tuned modulator ranging from C0 to C8. In audio rate, the X-modulators follow oscillator 1 frequency.”

However, in my case, while audio-rate modulation does work, it stays locked to the Rate setting and doesn’t follow Osc 1 pitch at all.

Is this expected? Am I doing something wrong? Or should I consider a firmware update? I’m a bit hesitant to update because the version I’m on is very stable for me.

Any input appreciated!

Edit: I’ve just updated to 1.2.1 and the behavior is still the same. The modulator doesn’t track Osc 1 pitch.