[Q] Google account sync settings are unexpectedly reset

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http://forum.xda-developers.com – Hello, I own Samsung Galaxy S3 (GT-I9300) 4.1.2 with a root enabled. I've noticed that my Google account sync settings may suddenly reset. For example, I go Settings - Accounts - Google - <my account> and tick "Sync Calendar", "Sync Contacts", "Sync Gmail". Then I press "Sync now". Everything is ok so far. Now I can do my business, switching between applications, browsing, reading. If I then decide to check the Sync settings, everything will be ok, everything that I checked before stay checked. Even shutting down the phone and turning it on wi (HowTos)