Profile Property Update in Flow Not Rendering

Hi @abbylaurenprice, welcome to the community!

Depending on when you setup the Segment, you can try the “Add Past Profiles” function here (under Manage Flow):

Then, use the “At the beginning” option to back fill all the people so they enter the Flow from the beginning so that they get the “Profile property update” action.

Give that a try to see if that works.  If that doesn’t work, you may want to consider creating/cloning your Segment AND this Flow and start over.  Sometimes when you modify the Segment several times as you iterate, it doesn’t fully take into account everyone because certain people have entered/exited the Segment each time you changed the rule while you were updating the definition or profiles.  

There a bit more documentation here on Klaviyo that explains the back populating process for Flows:

• How to add past profiles to a flow

Let us know if that worked - I’m pretty sure it should, but I haven’t applied the back populating of a Flow only to updating profile properties; so I’m curious to know!