Chat room not loading/showing chat messages for some chat rooms

Hi folks,

I am using Openfire server version 4.4.2 and running on the cluster environment with 2 nodes.
Hazelcast version:- 2.4.2

I am using a strophe.js javascript library for Openfire communication. I have 18 chat rooms on my openfire server out of which 14 chat room shows chat messages but 4 chat rooms don’t show any chat. Not able to find out why this is happening.

I have checked into the database table(ofmucconversationlog), there are 3-4 entries for each chat room of which chat messages are not visible.
I joined the chat room using spark client but it also not chat messages for that 4 chat rooms.

Please help me with this.