Hello,
There is a known bug with Media Composer Version 8.6 to 8.7 - if you try to create an Ultra HD 59.94p project using Blackmagic Desktop Video 10.7 or above on a Windows machine, you will get an error message and the system becomes unstable and crash. I wanted to find out if any other Avid users were experiencing the same problem. The bug has been logged and I hope Avid fixes it soon.
Thanks,
Asaf