Back when Premiere CC 2015 came out, I wisely kept 2014 on my Win 7 PC workstation, because 2014 works flawlessly, and that's how I make my living.
But now, after three CC2015 updates, I still have the same bizarre clip playback issues I had when CC2015 was first released. Every flavor video clip, XDCAM, AVCHD, ProRes, .h264, etc play back with in this weird stuttery 2X playback way. You have to sort of see it to understand, but it's completely unuseable. Though each CC2015 update iteration changes the weird playback issue slightly.
My system is a monster, 12 core Xeon workstation, 64gigs RAM, with a GeForce Titan video card.
Again, it runs CC2014 with no issues at all (as it ran CC2013). Anyone having or heard of this issue? Would love to know how you fixed it.