You're all suffering instability for one reason - the beta team is full of wannabees and fan boys who do this as a hobby.
And when a major bug is found by someone, Adobe usually sidestep it until the next release and then forget about it.
That's why things take years to get fixed, that and also because they treat bugs like feature requests, only fixed if it's popular with the beta team.
How do I know this? I wasted my time testing for over 6 years.
They had a major bug with Matrox hardware. We hammered Matrox over the issue for three months before we found out it was an Adobe fault. The Adobe rep sat there on the Matrox beta list and said nothing about it and was happy for Matrox to take the heat - which they did because they couldn't afford to piss off Adobe. I let the Adobe rep have it when we found out and told him to stick beta testing where the sun doesn't shine,
Bottom line is there are f-all feature because they already have your money.
Come on Blackmagic, finish them.