$nin is not working as expected,

Hi I’m new to MongoDB and I’m facing an issue with the deleteMany method by using $nin.
Irrespective of using $nin, the method is deleting all records in database.

Please help me out with this issue. Thank you in Advance.

Looks like a misspelled field name.

A few, well formatted, sample documents and the exact query would be useful to provide a better diagnostic.

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