The problem was confirmed and fixed with a new driver on RME's side (within 3 days of reporting the issue... on a weekend... wow).
 
(EDIT): Apparently I don't have privileges to post links until I log another 13 posts...
 
The RME forum thread and the new driver can be found via gswitz link on reply 2.
 
Or Google: RME Yikes
 
And it should be first on the list.

Hi ewb,
That's great that they found the problem. I'm continually impressed with RME's support. I had a problem with TotalMix just after I got my MADI fx card and they found a problem and released a fix in very short order then as well. I do have to wonder why I'm not seeing the behavior here, but I should probably just be happy it hasn't caused me problems in the middle of a session and count myself lucky 
 
Dean

Here is the link:
http://www.rme-audio.de/d...ver_pciefx_win_118.zip

This is one reason why I am a huge fan of RME. Fantastic support.

Here is the link:
http://www.rme-audio.de/d...ver_pciefx_win_118.zip

This is one reason why I am a huge fan of RME. Fantastic support.

D'oh! not for the UFX...  Glad things got situated!