I got the MC Client back on the re-boot. So it’s working okay now. At least as far as everything talking to each other is concerned.
I’m having to rewrite a lot of KC’s though. Can anyone confirm that the standard Ctrl+V which is supposed to be paste acts like select all in N6.5? That’s wierd as hell! 
I checked my X-tra keys and it’s got the command Ctrl+V, used Ctrl+V directly from the keyboard and got the same result. It will not paste! Instead, it selects all! Copy and repeat works, copy and duplicate works, but not copy and paste.