Just replied to email, hopefully you'll see it, thank you.

Thanks, vers. 5.7.4825 This also happened with an earlier version Turned on Arp as normal, or maybe tapped the load button. Either way, the patch menu was the initial screen. Just selected option 1., thinking that would only be relevant to the currently selected bank/pattern. Unfortunately all customization across all banks was gone. All patterns, midi assignments, everything was reset. I would like to use the diagnostic tool, thanks.