I have been using Vegas Pro for many years, but mostly working with old low resolution video clips. However, now I am going through a few years worth of 4K videos with my new PC (see signature). Most of the time the rendering goes smoothly enough. However, recently I have suffered 2 GPU crashes whilst rendering. The GPU crashes leaving both of my monitors black, but the PC is still running. My only recourse is to restart my PC (hard shutdown). When I restart it I notice only one monitor working, which is because I have a HDMI cable connected to motherboard and have access to iGPU. I found that due to the crash Windows has disabled the GPU (RX 9070) in Device Manager. I can reenable it, restart the PC and all is back to normal.
I occasioally play video games without any issues. Additionally, I have done many GPU stress tests, mostly with FurMark, and found no problem with it. I do not do anything with GPU in terms of overclocking and the GPU has been fine since I installed it back in early March. If anyone else has experienced GPU crashes whilst rendering I would like to hear about it. Or, any other Vegas user who is using the RX 9070 and their experience.