“but can’t imagine how one would effect the other”
Yes it does Wayne. That’s how Vegas always functions, if you
have more than one version installed, they become Interoperable (share
resources and similar functionality). So that means if you have a plugin
that does not work or shows up in Vegas 13 but works perfectly in Vegas 12
and then have both these versions installed together on the same system,
then now the plugin will become visible and functional in Vegas 13.
Therefore now to the matter at hand, and as i mentioned earlier, i am
suspecting if you remove Vegas 13 completely from your system and now use
Mercalli 4 in Vegas 12, you may get the same odd result Roger is getting here!
Steve Rhoden (Cow Leader)
Film Maker & VFX Artist.
Owner of Filmex Creative Media.
Samples of my Work and Company can be seen here:
https://www.facebook.com/FilmexCreativeMedia