Vegas hangs whenever I render to Windows Media 8 using the Screen v7 codec. It gets to 100% and then just sits there, even if I clicked the "close when finished" check-box. I have to end task.
Aside from being annoying and resulting in sketchy files, this also means I can't use batch rendering.
I've reproduced this bug on 6 systems and not all of them were mine. I tried VV4d. Same results.