I have 2 Slim Phatties - one responds ok to pitch bend messages, one not - controlled via same midi keyboard.
The one with odd pitch bend behaviour: pitch bender upper and lower range do not work on the entire mechanical range and pitch to very weird tunings.
In advanced preset menu - if PW UP value is other than 2, the whole patch transposes weirdly (not whole number of semitones), PW DOWN different values do not affect the
Both same Firmware 3.12 680 / 34 (initially the SlimPh with issues had 3.12 690/34 and I thought this is the issue and loaded 3.12 680/34 to be the same firmware as on the good working SlimPh.
Serial numbers:
SP 05444 - weird working one
SP 03117 - works ok
I think i have the same problem. I have a Moog Little Phatty Stage 1 that I had updated to firmware 3.21, but my pitch bend wheel barely works anymore. When I move up, I have nothing, and when I move down, it’s not very smooth. I tried calibrating the wheel, but it didn’t change anything. I also tried connecting a MIDI keyboard, and even moving the pitch bend wheel on the MIDI keyboard still caused the same problem.
I’ve acquired SP recently and PW response was also poor. Going through PW calibration alone didn’t help. I had to go through NOTE and OSC2 calibrations first as the tuning was kinda wonky across the note range even after warm up. And then doing the PW calibration. All is fine now. Not sure which FW I have, I’m not in reach of SP now.