Guitar Track 4 drum loops.

 Hi there,
 
I'm having a problem when transferring a drum loop  to the guitar tracks software. the loop always ends up a the end of the track or else only half of it transfers or doesn't transfer at all. I'm using discrete drum 24 bit and 16 bit along with the v-studio 20. Hope it makes sense and somebody can help.
 
Cheers,
Sharute.