hi there,

I have multiple (5-10) subscribers subscribing to the same topic published by 
one publisher. They are connected via a XSUB-XPUB proxy. All the subscribers 
are always up and the publisher may come and go at times. I have noticed that 
at times, after the publisher is restarted, one of the subscribers might stop 
receiving any messages at all. It's not a slow-joiner kind of issue because the 
publisher continues to publish message every second and that subscriber may not 
get any messages at all forever, whereas other subscribers are getting messages 
at the same time. I also verified that the subscriber is waiting for messages 
(it's calling the receive function.) and if I restart the subscriber, it will 
get messages again.

Could someone enlighten me what I may be doing wrong? Is there any thing I 
should be looking into?

Thanks in advance.
Winston
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