Configure retry and confirmation-window-size at your connection factory.
It seems you have some unreliable connection. If you establish these parameters the system will have reconnection and do resync of your packets.
any other logging?
I'll try it enabling more client logs
BTW it looks more like performance issue: when I create only 5 publishers, 5 subscribers and only one topic, the problem donesn't appear.
The issue isn't being reproduced
I'll update this post as soon as it is
I'm facing the same issue? Is there any solution to this issue?