hmm..
ok..it looks like when I said "it works fine".. I actually meant " I can see that there is a VST3 and I can insert the VST and the editor window opens"..
With preferences set to have all 5 of the s70xs ports active for both input and output, I get a recurring error that says " the host ports are not properly set"
so, while I can open the editor window, I cannot communicate either setups, changes or play midi data to the device",
I will take another look later today wheni have more time but perhaps I suggest you change the title to reflect "X3 VST3 bug" or similar to get some attention?
regards,