MongoDB 6.0: Invalid UTF-8 string in BSON document when adding an arbiter

userC26i 0
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I have an installation of 3 MongoDBs which should act as a replica set, two of them data bearing nodes and one an arbiter. I have already configured both data bearing nodes but I have a problem configuring the arbiter.

> rs.addArb("172.26.251.61:27017")
{
  ok: 1,
  '$clusterTime': {
    clusterTime: Timestamp({ t: 1663326365, i: 2 }),
    signature: {
      hash: Binary(Buffer.from("0000000000000000000000000000000000000000", "hex"), 0),
      keyId: Long("0")
    }
  },
  operationTime: Timestamp({ t: 1663326365, i: 2 })
}

Then I check and I get an error:

rs.status()
BSONError: Invalid UTF-8 string in BSON document

If I remove the arbiter rs.remove("172.26.251.61:27017") then rs.status() works properly again:

mongodb
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