Hey Manuel, while we sorted this out directly in Slack, I wanted to post the update here in case anyone else is looking at this in the future.

The cohort destination only sends email/user ID and not additional properties. The solution here is to set up the events/user properties destination by selecting 'all events' (or a specific event if it's exclusive to one) and then select the user properties you wish to send. However, there's a gotcha for this situation that you fall into. This only works if you're sending user properties along with events. In your case, you’re sending the user properties directly so it doesn't fit your needs. 

Hopefully this is something we can support down the road!

@Beth Saunders is there a ways to sync more user properties in a cohort sync? I could only see the ability to do it in an Event Stream. Thanks!

 Sorry for the delay here, ​@RyanSmith! You can’t send additional properties with the cohort sync, so you’d need to investigate the Event Stream option.