Garmin G80 has stopped saving scorecards.

I have uninstalled and reinstalled the app. I have reset the device to its factory settings. Neither of my last two rounds are showing up after syncing, nor on the Garmin website when I connect my G80. The device just doesn't appear to be saving them when I end my round and select 'save'. 

Is there a limit on how many rounds can be saved or something? My last two years of rounds are all still showing, I just can't save a new one. I just tried filling out a fake round and made sure to save it, still not showing up on the app, or website.