Autoreconnect does not always complete the "session establishment" and does not request users' presence
If you get disconnected from Spark, spark will auto-reconnect you. During this process, I looked at the openfire logs and saw the user connected, but never saw the request for presence information. As such, people appear offline when they are not.
Mass closing of all bugs resoved during 2.6.0 and 2.6.1
should be solved with the contactList patch
Please review the open issues and familiarize yourself with the code.