I had a few codecs on Vegas pro 12, and I love using lagarith to render as an avi. But now that seems to be missing upon making the switch to 15. I've reinstalled them with no luck. Any ideas?
The image you posted before showed a bunch of AVI codec options: cineform, MagicYUV, SonyYUV, uncompressed.... Is this still the case? What is the target application that cannot read any of those?
PS Can't really diagnose the problem in the forum this way; that's why I am heading towards a workaround. You could, of course, open a support ticket with Magix, although it may take a while.