Please post your issue on the bug/features UserVoice system. This is a fairly rare issue but hammers anyone who gets it. Any data on media, effects, the computer, and steps you've tried would be good to get to the engineers.
Plus Adobe lives by metrics. Anything filed there makes The List ... so please file this.
I'm on my phone or I'd post the link but it's on the top of the Overview page of the forum.
Neil