Sending data from an SDP from one page to another results in a loss of key values?

Summary

When I am sending data from one page to the other, only some of the values from my keys/pairs in my SDP object is kept.

Content

I have a table on my page that is bounded to an SDP, whose data I get from a GET request. I want it so that, on a click of a row, that row's data will be sent to the next page to populate a form. Right now, only a couple of my fields are populated and not all on the form after the navigation to the second page is complete.

To debug on my first screen, I have an action chain that prints out the contents of the row that I clicked (I used the action TableFirstSelectedRowChange) before the navigation. The print statement shows all fields of the row I clicked, and none of the values are null.