Those are not key frames they're markers, but whataever. It's 2015...anything you do with the interface causes playback issues. 2015 is lame horse. It need to be put down. Considering the way Adobe has gone about this release, the fact that there has been no official apology, I think, means we should not do them the courtesy of testing this dog.
Do not test their software for them until they 1) change the default behavior of the installer removing previous version 2) Apologize
Let them suffer with it and test it themselves until eventually they are forced to start handing out refunds.
ADOBE HAS BETA TESTERS WHO RECEIVE THEIR SUBSCRIPTIONS FOR FREE!!!!
DO NOT TEST THIS CRAP SOFTWARE FOR THEM!!!
Yes - Markers, not keyframes. Thanks for the answer, discouraging as it is.
Sorry for yelling. Looks like they took my 10 points away