Hi Kevin
I had a very similar issue some time ago but the other way round - in my case, I was picking up each -to-many object in turn but then overwriting it with the next! If you want to PM me with the full Create payload/response definitions (There looks like an indent on the first line above) and an example of the actual packets received/sent (?POSTMAN or Power BI logging) I am more than happy to go over them.