Github user BiNZGi commented on the issue:
https://github.com/apache/activemq-artemis/pull/2468
Thank you for the hint with JIRA. Today I have made some more tests and
recognized that there was a mismatch with the STOMP versions in my case. The
messages were in STOMP 1.1 but with CR that is not allowed in this version.
Therefore I close this PR.---
