I am having a similar problem with some fade-ins. That is, when I use several starting screens, packaged with Vegas 9, and I apply a fade-in to them by varying the compositing level from 0 to 100%, they flash instead of varying gradually from black to full picture.
I should clarify that this problem does not occur in High Definition either in preview or final BD from DA5.
However, when I move the rendered (high definition) file to DA5 to make a standard DVD (SD), both the preview and the final SD DVD show the flashing fade-ins.
I noticed that the flashing does not occur on solid colors, or black, but only on some pictures with gradient colors, specially from white.
This problem does not occur either if I apply fade-in to a video scene directly.
The obvious workaround is to avoid those starting screens with gradients or other trouble content. But, I would like to use all of the supplied screens when apropiate …
Has anyone found the actual fix ?