Hi,
I have problem with Yahama Dtxpress 4 with SD Problem in cubase
First when I create a new vst instruments with is midi track and I set Superior Drummer everything going fine I hear what I play but when I record the track of the drum do not play what I do it’s like random of anything 
((( and the tempo is out.
same thing when I drag a groove in the timelime
I set the mapping on E-drum
does a mapping exist for dtxpress 4 ?