R# 7 EAP build 261: Member completion in XAML non-functioning

     Having issues where I get no code completion whatsoever in XAML editing.  Various other features like Brush color underlining, Go To Member, and others, are all functioning (though a bit buggy).  

• I have tried uninstalling R# and reinstalling to no avail.  
• Tried to re-enable VS Intellisense instead (Auto Member Completion -- but it's disabled)
• Tried to "apply scheme" in Visual Studio Integration again.  Didn't work.

Please note, it greatly affects how quickly I can write XAML because it doesn't support completing end-tags or on the fly formatting so I'm about as efficient as if I was writing in Notepad.exe.  

Any help would be greatly appreciated.