got my m4 in the mail yesterday – it’s a sweet lil thing 
unsure if folks have had this experience, but running into some interesting behavior with norns where about 100-150 seconds after it’s plugged in and running simple MIDI into a WIP script, all processes seem to come to a dead stop – they restore if i unplug the m4. running dmesg after, i’m seeing usb 1-1.3: urb status -32.
figured i’d put feelers out there to see if folks have run into similar weirdness
. happy to assume it’s the WIP script, but this doesn’t happen with an OP-Z or similar controller, so would be good to hear any experiences.