Calendar sync and view settings not sticking?

[GilmourD]

Has anybody else had an issue since the update where the calendar settings for which calendars sync and which are viewable revert after a couple minutes? For some reason my main Google calendar won't remain viewable so I'm not getting notifications for appointments. I'll set things how I want but then I'll get a message to couple minutes later about new calendars syncing and things go back to the way they were before.

Anybody got a fix?