AEP audiences show email sent as zero

Hi, I'm seeing something a little odd on the profiles in AEP. We are using AJO and sending emails. in the customer profile, under events, i can see all the message interactions like message open. but dont see the email sends (i would imagine its direct marketing email sent). In fact i dont see the 'direct marketing email opened' event either (as i would expect from an AJO send, which also makes building audiences tricky as those events when used, return zero). and why under message event type. 

I've set the channels up as marketing emails, so would expect to see all email interactions

any ideas?