This happens to users in our org. Somewhere during the login process you are prompted to choose Personal or Enterprise. If our users choose Enterprise they get stuck in this loop, so we've been telling our users to choose Personal even though its counter intuitive.

Check out the documentation for sending in along additional data in a trackAction: Track App Actions You can put the current page at the time of the action into the context data, and then map it to your desired evar/sprop. Then you'd be able to see the pages/screens on which your action happened.

There are a couple ways to do this. One would be to create a segment for all visits that contain an order. Then with this segment, use the flow visualization in Workspace to view the path that these visits took to the shopping cart page. You'd want to set the flow container to Visit.