This looked like it was fixed in version 3.5.7, but maybe back. We are not seeing this issue in any other combination of node and mongo.

(node:2396) Warning: Accessing non-existent property 'count' of module exports inside circular dependency
(Use `node --trace-warnings ...` to show where the warning was created)
(node:2396) Warning: Accessing non-existent property 'findOne' of module exports inside circular dependency
(node:2396) Warning: Accessing non-existent property 'remove' of module exports inside circular dependency
(node:2396) Warning: Accessing non-existent property 'updateOne' of module exports inside circular dependency