Simple JSON nesting issue

LeeDuffy - if I read your post correctly, you are passing data as a pipeline parameter; this is against best practice.  Instead, I recommend that you leave the input view of your first snap in your child pipeline open, which will allow the data payload to be passed to the child as if it is part of the parent pipeline - no formatting or parsing necessary.

Hope this helps!

PS - you did not attach your sample pipeline, so I interpreted as best I could.  If you are having difficulty attaching the SLP file, you can just zip it and attach the zip file.