Bug? Everything freezes, auto switch to 59 Bassman

[Petunia]

Latest firmware. Playing with USA Pre LD2 Yellow for about 2 hours, while plugged with usb into computer (comms paused), suddenly no buttons work and the amp is (I believe - couldn't find out) 59 Bassman (sounded pretty good )

Rebooted, everything sounds great as ever. First time it's ever happened.

 

[theaterinterior]

This also happens to me, it used to be quite rare but it has happened two days in a row now. I don't think it's the bassman, I think everything has been completely bypassed and you're just hearing the sound of your unaltered guitar, but somehow the levels seem to be matched so you I guess it could be a very clean bassman.

Luckily it has never happened during a gig, it seems to only happen when connected to a computer (with or without AX8 edit open).