I was dumb to install EC beta due increase in speed for rendering in FCPX. The app has huge problems with EC when editing clips, it crashes very fast. I have now reported this 5 times for every new release. Same issue.
So - I will never install any beta from Apple - never again this mess and they now seems incompetent to me.
So - I will never install any beta from Apple - never again this mess and they now seems incompetent to me.