Got everything working on the website I was having problems with, then went back to work on another website where DFP1 was working correctly.
Built a new set of forms with Data Assist, one of them being an insert form with 7 image fields.
Configured all of my settings for the DFP 2.0 upload behaviors and the inset record behaviors.
When the form is submitted it posts the clear gif path to all of the fields regardless of whether a file is uploaded or not. No file is ever uploaded.
I have tried renaming the Helper File in order to create a new one and I get the same results.
The old DFP1 form still works correctly. Even tried replacing some of the DFP2 upload params with DFP1 upload params and get the same thing.