So all stomp and effects are left empty, at least for testing? (A-D, X, Mod, Delay and Reverb) Or you could just deactivate all stomps and effects if any are loaded.
Noise Gate at 0?
On the Amplifier setting (page 3/4) the volume is at 0.0db?
Are you seeing any yellow or read on the input or output LEDs? With Clean sense at -12 you should be seeing anything but green no matter how hard you pick a note.
Pickups at a normal height on the guitar - not overly close to the strings? Are you using active or some really hot pickups that may still be overdriving input even with Cleanse sense as low as it goes?
And the Gain for whatever profiles you are trying is set at 0?
You're sure whatever profiles you're trying were made as dead clean profiles (gain at 0 and no pedals in the profile)? You're saying this happens with any profile you try?
If that's all checked then probably next is contact support. Maybe resetting things in some way might help.