[chef] knife JSON::ParserError

[Chris < >]

Hi Chefs, 

I have an interesting problem that cropped up late last week and I haven't been able to figure out whats going on. 

There is one particular org that is throwing 'ERROR: JSON::ParserError: Unsupported `json_class` type 'Symbol'' on any node search or node edit via knife. Role searches and edits are working fine. Other orgs seem to be working fine though. I tried a node search from shef on one of the nodes in the org that returns the knife error and it worked fine. 

I've tried various combinations of Chef versions up though 11.6 and the latest JSON gem to no avail. Several other people on my team are running into this as well for the same org. 

Anyone run into this before or have any suggestions?

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