It's been a couple days that sometimes my pod hd500x switches on its own to preset A on any song i'm in (i.e. if I'm in song 4, preset C, suddenly either if I press D or I don't press anything at all, the pod switches to A. It's very annoying, especially if it happens during a gig while i'm away from my pedalboard). What's the deal with this bs??? I run latest firmware, bottom row with presets, top row with IA switches. Any help asap very much appreciated!!