Post_Tnt_Action Not Populating post-MobileSDK

Hello - 

Has anyone else had a similar experience that when you made the transition to the MobileSDK your post_tnt_action field in your data feed no longer was populating? 

Looking for any type of troubleshooting ideas -- checkboxes that we might be missing, a step that is often overlooked, something new that needs to be setup, etc. 

Thanks!