Calendar not updating
I have a Note 4 and since I upgraded to Marshmallow my calendar stopped updating. I have to clear the system calendar cache and then it sync's for a few hours and then it stops sync'ing again. I already checked that I am not in Power saving. Sync is on. I deleted and readded my account. I resetted my phone to factory settings and installed everything again. The problem is not the calendar app, because once it stops sync'ing none of the calendar apps work (stock, gmail, samsung focus, etc).