When I play a Halion Sonic instrument with my midi keyboard it sounds great but when I hit record I can only hear the first notes every bar or so. The length of the midi notes are being captured correctly though. When I play it back I still only hear the first notes every bar or so. Any help would be appreciated. 
Hi and welcome,
Isn’t AutoQuantize (AQ) enabled (orange button in the left bottom corner of the Project window)?