I have several custom presets in my Gateway (via my PC at my.marshall.com). I synchronized my PC with the Gateway App on my Android phone and all the new presets show up (so far, so good). The problem is that when I turn on the Code 100 amp, all of my presets (in the Gateway Library on my phone) get reset to the default presets.

If I turn off the amp and re-sync, all of my custom presets show up again. When I turn on the amp, they all get reset to default values.

I updated the firmware on my CODE 100 and tried several different startup configurations, but nothing works.

Why is the amp overwriting the presets on my Gateway App?

I have a Marshall Code 50 running MCU version 1.44 and Gateway (Android version 1.5.5) on a Samsung Galaxy S9+ running the latest OS. I can bluetooth pair to the amp and play music, but can not connect to the amp to change my presets from the library.  I have reloaded the latest firmware on the amp, deleted and reinstalled the Gateway app, paired and unpaired several times.  Nothing seems to work.  I even grabbed my old Galaxy S7 Edge phone and that Gateway app on it does the same thing.  Does my amp need to be serviced for Bluetooth connectivity?