[LDS]

You only have 32 digilink I/O showing in the routing matrix. I suspect these all reflect the digilink connections between the MTRX studio and Pro Tools/HD Native - your assigned monitor profile with monitor outputs on digilink 1-8 are actually sending your monitor signals straight back into Pro Tools on inputs 1 through 8.

It is the second time a similar question has popped up in recent weeks without an answer, and there doesn't seem to be any info about it in the manual. Does a second Digilink interface attached to the expansion port of a DAD interface result in it appearing in the DADman routing matrix? Traditionally an interface attached to the expansion port of another is passed straight through to Pro Tools.

I have no idea about the intricacies of it. The only thought I have is to check how the digilink I/O is set in DADman (bottom panel where Sync settings are). Digilink mode should be set to Pri/Exp. From there, I would check to see where the Omni is and isn't appearing in both the DADman routing matrix and in the Pro Tools hardware menu.