first sorry for my poor english
it's near the same here.it happends on my two computers ( on resolume 4 registered, one in demo mode)
in my case , I just use the midi in of resolume so I can't speak about the midi out option. but there is surely a problem with midi in . resolume 4 crash sometimes, when It receive midi from a midi port, and I don't see a logical reason. the application who send midi does not change anything '( live, sensomusic usine, energy xt)
for exemple, when it receive some midi from live, all works fine. later , you send the same midi data, and resolume crash.sometimes it crash when I change a project ( in ableton live for exemple).
sorry for the poor help, but it seems to be like a random crash.
I'm on windows 7 64 bits, I7, 8gb for ram. using the midi in of resolume only, with loopbe 30 or loopmidi as virtual midiport. I can the same installation on the same computer with resolume 3 without any crash