@P0rp01s31954 Mocha Vegas can't be used as a standalone version, it is solely a plugin & is host locked, so in your case you'll have to open VP21 & use it in there, then render out from VP21 & import the rendered file into VP23.
Sorry, yes, don't know what I was thinking. This is what happens when you have the full Mocha Pro OFX, you get confused. Well that's my story, and I'm sticking to it.