Hmm, it’s possible there’s a hardware error with the Datalooper board. There were a few units right when V2 was introduced that had an issue with the wrong voltage going to the EXP jacks (5v instead of 3.3v). I believe the symptom of that though was that the pedal would send out 127 at the halfway mark, rather than the full range. If you want, you can ship me the pedal and I can take a look and see if that’s what’s going on, or you can open the box up and send me a photo of the main board (firstname.lastname@example.org) and I can tell you if that’s what the issue is (I can visually see if the 5v line is connected wrong).
If that’s the issue, you can ship it in for repair or I can guide you through how to repair it if you’re handy with a soldering iron.