I'm sending a webhook to Flow, which works just fine, but Flow seems to... ignore some of the data? 

The webhook is received as expected:

 

But only some of the values show when attempting to map variables in subsequent steps, lots of data missing:

(I can't publicly post the full response for comparison as it has private customer data.)

I have no clue what I'm doing wrong, as I've used this webhook hundreds of times just fine. It's as though Flow can't read all the nested/embedded JSON.