On the original ROM in CAL settings I could select a default calendar to save event to - local or Google. I don't have this option now, and seems the app doesn’t recognize my registered account as when I try to create an event I get a pop up window saying: "Local calendar cannot sync with Google calendar. You need a Google account" + a selection box to "go to account and sync" where sync calendar is ticked and working (when creating event on Google I get it synced to the tab).
Is it something I can fix by settings or need a ROM update??