Cubase "Hangs" (for me) when using the MIDI Device Manager

I.e. it takes a long long time to quit Cubase!

I hadn’t used the MIDI Device Manager in a while and thought it was time to get back into it. So I imported a number of (maybe 10 or so) setups from a large exported XML file I have. When I later quit Cubase, I had read a post here on the forum referring to the file “MIDI Devices.bin” in the location “[User]\AppData\Roaming\Steinberg\Cubase 6_64” so, I had an Explorer Window open and so I was looking at the bin file and it was 0 bytes, but growing slowly. It took a VERY LOOONG time for Cubase to write 1,620 KB to the file while quitting.

I therefore decided to discard all my loaded MIDI Devices in the MIDI Device Manager, then quit again, and poof! Back to the desktop in no time. Something to look at for anyone who’s Cubase us “hanging” on exit.