I mentioned this within a different problem post, but I wanted to break it out so it wasn't lost.
I'm trialing v18 as a regular and long time user of v17 (going back to v8). I was simply testing a completed v17 project to compare rendering speeds and this very tiny project never completes rendering under v18. Under v17 this is about a 60 second render but under v18, it gets to 84% complete and then hangs. I've waited as long as 30 minutes and it doesn't progress, though it reports that is consuming about 8% CPU.
That's bad enough, but the CANCEL button on the render dialog can't cancel the render. Even attempting to close out Vegas Pro can't seem to cancel what its hung up on. The only way to terminate it is go into Task Manager and kill the process, and fortunately THAT works!
I'm attaching a progression of screen captures to demonstrate the various things.
Someone suggested I install AMD's "pro" driver set, which I did but did not make any difference in this behavior. I presume to further analyze and debug you'll need more details. Just request and I'll provide.
Thanks,
Jonathan