Github user michaelandrepearce commented on the issue:
https://github.com/apache/activemq-artemis/pull/2262
@cshannon we have an issue where we have reported message count that never
get dispatched, it was thought it was metric issue only, e.g. difference
between whats in the messageferences and the counter (e.g. the messages aren't
really there), but it looks like a more serious issue with the messages not
being delivered for one reason or another and the messages really are in
messageferences. They fun of a not very easy to replicate issue.
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