Did you find a solution?
I have the exact same problem with my UX8.
I have tried everything from changing power outlets to passive/active instruments and "preamping" the signal between the guitar and the UX8.
- The problem is solely with the instrument sockets.
- It doesn't matter if I have POD-farm turned on or not (or any other software for that matter). The clip remains.
- the clip does seem to go away if I turn the guitar (electric - humbucker) down enough. So it seems to have something with the UX8 instrument socket being more "sensitive" now than before.
What to do?? Is it possible to fix by remplacing hardware inside the UX8?