Hello,

I am testing the latest stable version of MongoDB Compass on our existing deployments and am noticing some cases where the application hangs. 

For this particular issue, I am connecting to a 3 member replica set and testing the case where the user omits the replica set name in the connections details, specifies the host and port of a secondary member, and uses the default Primary Read Preference.

To reproduce:

1. Provide the Hostname and Port of a secondary node in the replica set
2. Omit the Replica Set Name from the connection fields, then Connect
3. The 'not master and slaveOk=false' error message is displayed
4. Try to Disconnect from the session
5. The application hangs

Note that the issue is not reproducible in 1.16.4.