Troubble with premiere cc 2017!! Urgent

[sqllguilherme]

Hi guys my name is guilherme and i have a troubble with premiere cc 2017(testind version) i try make a preview and my audio/video 1/2 quality and my preview keeps going back and forth i need help plz

[Peru Bob]

A little more information, please:

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[sqllguilherme]

File: Hd Animation
Version: Last version(i cant find this) cc 2017

Recently this is happening all the time in any footage
My Configs: i7-7700 3,6ghz, Gtx 760, 32GB Ram, ssd for adobe programs and 2TB for trash.