I have solved this problem now. I found another case on the net. If you mute a track Vegas responds in this manner and will never render. the fix is to ungroup the audio and delete it from your event if you dont want the audio or reduce the volume on each event to 0. Maybe this is something that will be fixed in the next update?

I think you've gone down the wrong path. I've been muting tracks since version # 1 and have never experienced what you describe. In fact, its extremely rare that I don't have some tracks muted during a render and I certainly would have picked up on such a serious issue. That said, I do not have Vegas 9 so if you're using it, perhaps there is a problem?

Rendering with muted audio tracks works exactly as you would expect in V9, and does not alter render times on my setup(s).

Baffled as to what to suggest, apart from maybe some broken plugin....

geoff

Uhh, are you by chance trying to render "audio only" to a video template?
If so, kindly choose an audio template, and proceed accordingly.
You never did share with us the goal of your project; what is the usage?

Hi Am trying to render an audio only against an audio template. Goal of the project is to burn a dvd in Architect. Works fine without the track muted. I read of someone else experiencing the identical problem. Will keep using this work around until I hear otherwise!!

Muting or unmuting tracks should make no difference. I have a feeling we haven't got all the information.
I sometimes have as many as twenty audio tracks sitting in a project, with all but the finished 5.1 tracks muted during render.
Use the AC-3 audio template for DVDA; should take about ten minutes to render a full DVD's worth of audio.

thanks for your help, I shall try this. I think I have tried the AC-3 audio. Which one should I use for a bluray disk in stereo? I am also having trouble rendering video for bluray in AVC, so have tried MPEG2 which it will do as a m2v file.

Only yesterday I rendered mp3 audio out of a V9 project with many muted tracks.
That doesn't mean there isn't a bug. Some of the bugs being found in V9 require a very specific set of circumstances to repo.
I'd urge you to report this to tech support. You're going to need to be very precise about the steps to reproduce. I'd suggest also giving them your project file. A link to the other report of the same problem might help too.

Bob.

i experienced a new bug in 9.0a which caused both audio / video renders to take hours.

People are now reporting that a pop can happen with 90 degree envelope changes.

I had no envelope change, but I got one hell of a pop. It reported as +650DB!!!

My renders were fine until they hit that spot.

I moved the audio clip to a new track, and my problems disappeared.

I love the 4 point envelope editing in 9.0, but version 9 is really not stable yet.