Vegas Pro 12 not starting render?

[LlamaCat]

Hello,

I've been trying to edit a video using Sony Vegas Pro 12, but it won't start the render. I add a .mp3 audio file to the .mp4 video, and then try to render it in the "Internet 1080p" setting but the render just won't start. I've tried changing the audio file to .wav but it still doesn't work. However, it renders other video files. (which don't have custom sound) I don't know why, please help!

Thanks!

 

[kenrivers]

What are you using to render the videos (Main Concept or the Vegas encoder)? I recently read where someone was having trouble with rendering and switched from the Main Concept encoder to the Sony one and it helped. Are the other files it renders without a problem .mp4 files as well? Was the video you are having trouble with recorded with the same equipment as the files that do render?

 

[LlamaCat]

What are you using to render the videos (Main Concept or the Vegas encoder)? I recently read where someone was having trouble with rendering and switched from the Main Concept encoder to the Sony one and it helped. Are the other files it renders without a problem .mp4 files as well? Was the video you are having trouble with recorded with the same equipment as the files that do render?

I am rendering using the Internet HD 1080p format. And the problem changed a little, after adding another clip, it now renders up to 40%, and then freezes there everytime.