...Checked with Magix support and they couldn't figure it out...
Hi, Jason - I was hoping a Samplitude user would have noticed your post and replied by now. One problem is that I don't recall ever knowing about a Samplitude user here, it's not a very commonly used program.
This isn't good though, that tech support at Magix couldn't help you. They'd be the most logical source for an answer.
I'm sure you've already been there, but here's the link anyway to the Samplitude user Forum. Maybe an experienced user who also knows about using Garritan can help you out:
ARIA 1.5, the current version, is due to be updated very soon. A number of glitches are being addressed. The fixes I'm aware of are for Finale users - but maybe there's a technical problem with ARIA interacting with Samplitude that's also being addressed. I don't know, just guessing.