Anyone have any tips for debugging the error:

You are referencing a node that does not exist. Please check your mutation to make sure you are only creating edges between existing nodes.

I copied my query into the playground and it works as expected. But in apollo I get the error. And the error does not provide any info as to what node it's referencing. Most of my fields are required so I can't go through and start removing fields to find the problematic one (if there is one).