EDIT: This appears to be related to the Bank Size and Upper and Lower Limit settings for the FC. Lower limit shows "0", Upper Limit shows "51" in Axe Edit. If using Bank size 4, which I do as I use PERFORM 1 layout, that would only allow access to presets up to 204. The behavior happens when using any preset above 204 and hitting either Bank+ or Bank-. The units will default back to first factory preset---an internal error possibly?
As there are 512 preset slots available, the Upper limit for the FC would need to be 128. If you try to change and save that, the FC displays the same preset name in ALL the windows (perform mode 1) and can only select that preset.
If the upper limit is changed and saved, when powering off and back on, the Upper Limit once again reverts to "51"
I'm more confused as why this is happening now. Prior to this, there had been no problem using any preset over 204, today there is. Not a software guy, but I would bet it is related to the Firmware. Of course, all my gigging presets are up in the 400's so I'm not sure what I'm gonna do. Really don't want to supplant factory presets and move stuff around just to make it work, but may have to in order to use for now.
Anyway, maybe this info will help.
My details if needed:
FW 5.05
FC V 1.05. updated