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Joining a MUC [from an Android client] gives "XMPPError: item-not-found - cancel" exception inconsistently and users are not able to join the room


I am currently using openfire 3.10.3 version. It works fine with Hazelcast, Monitoring and ChatStore plugins. But randomly, joining a room leads to “org.jivesoftware.smack.XMPPException$XMPPErrorException: XMPPError: item-not-found - cancel” exception. I have created the room, set all properties to it and will be able to join the room successfully (The room gets created and all properties for the same will be displayed on openfire as well). But joining the same room will give me the above exception, randomly (like once in every 5 attempts to join the room from Android client, which uses Smack-4.1.0 jar). Can someone please guide me how to resolve this?

Thanks in advance,


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I have a similar setup, using Of 4.2.3, Hazelcast plugin 2.3.0, and the REST API.
I get similar occurrences with the same error, using Smack and Strophe.js libraries