AndrewJohnson I paid for a pro version a while back and now it says I need to upgrade to pro version. Can't sync across devices. Google not much help.
AndrewJohnson Note: Not sure if this might be helpful to anyone with the same problem, but it worked for me. I uninstalled the app and re installed it. Connected to the account and it synced as normal.
timo There's a section in the FAQs what can be done to recover the Pro version if it disappears. I will try again to minimize the occasions that this happens but unfortunately there's issues that I cannot work around or fix (only Google)