Changing people picker field to allow multiple selections broke my V2 Owner lookup?

[Oatman2000]

I hope I said that right... 

Doing a MS Forms to SharePoint List using Power Automate. 

I passed through the name details using the "Get User Profile (V2)" and populated the Owner Column in SharePoint. 

Recently I made a change to allow multiple people to work on a project and now my "Owner" column isn't getting populated. 

When I expand the field, my options are no longer there. 

Do I have to revert back or is there a way to get this moving forward?