Donald Hruska  Yup that's what I'm doing:
When in Single Screen I see the errors below
In Preview mode the screen goes white with no data.

List setup:

Text box setup:

Preview mode:

hey  Donald Hruska  im tinkering and still running into the same error. Do I need to refresh my data source or do something to reset the previous implementation?
 Donald Hruska  Thanks! I'll give it a shot again.

I really like the product compared to other solutions, it speaks to me as a former dev, so I appreciate the speediness here so I don't go looking elseware :)
Thanks for the quick reply Donald.

Is this related to simply using Lists or is this caused by schema of my json? 

Just trying to figure out if I should avoid List or wait until the bug is fixed overall.