When using columns.render I get "Requested unknown parameter"

I'm down the rabbit hole on this one.

I have a nested array. The nested array (schedules) has multiple schedules for each outer array (cycles). I need to loop through "schedules" and display every schedule returned for each cycle . So each row will have a schedules column with a list of linked schedules.

View code here:
live.datatables.net/jibedupu/2/edit?html,js,console,output

Thanks!