Hi,

Since update Vegas pro 19 build 458 MOV's with transparency are not accepted anymore.

The former build 361 works fine. See error-message.

Yes latest version QT installed and yes QT allowed in settings.

I use it with Blender to have transparency in a rendered video from 3d scan. Very useful, there seems to be no other option, i tryed other containers and codecs.

I inserted a video in MOV with transparency in this comment. I don't know if its downloadable.

I posted it to pro support, but the answer was somehow disappointing. As far as i can tell standard reply with links (read this, read that). Obvious things i was aware of.

Hopefully someone solved this.

Kind regards,

Bob