I'm trying to create a template with multiple repeating sections, and I keep running into an error with the most complex repeating section: "The following error occurred populating the word document provided: Tag 'experience' is not well-formed. Token 'experience' is unexpected." I'm copying the schema as laid out in the repeated sections tutorial but I can't get it to work.

The array for the repeated section is formed via:
The json fed into the Populate Document action is: 
Where am I going wrong?
It should be: <<[experience.Project]>>