I've been using Vegas Pro since version 14. I am now using Vegas Pro Post 365 that was just released (Vegas Pro 21). I've been an AMD graphics card user since the old ATi days of the first Radeon card. I've been fairly happy with the cards over the years, and really didn't have any driver issues until now. My current card is a Sapphire RX 6700XT.
Updating from 23.7.1 to 23.8.2 was a disaster. Thumbnails in the Preview tab were green. Drag the clip to the timeline, it was green. I had to revert back to 23.7.1 to be able to see the thumbnails and view the video properly on the timeline.
If I have time, I will provide the screen shots to show the difference, but, uninstalling, reinstalling, uninstalling, reinstalling does take a lot of time, and I am in the middle of doing some tests.
I asked in the the Vegas user forum about VEGAS Creative and if they have any working relationship with AMD. The reply was no, but they do have a good relationship with Intel and Nvidia. I think this needs to be addressed really soon, otherwise, my future purchases for graphics card will have to change to better support what I actually do on my computer. I spend more time with Vegas Pro than any other program or game that I might play.
AMD Ryzen 9 5950X, Sapphire RX 6700XT, 32GB DDR4 3200 RAM, Gigabyte X570 Elite.