Since version 3.6.10, queries that save data to the database (i.e
"findOneAndReplace" or "deleteOne") are failing in our DocumentDB cluster (engine 4.0.0), with just one instance. This does not happen in 3.6.9 or earlier versions.

The returned error looks like this:

{
    "ok":0,
    "code":301,
    "operationTime":"6919224133456914930",
    "name":"MongoError"
}