Hi, I wanted to let everyone know I have marked SOLR-16955 [0] as a blocker for 9.4 release.
I believe that with tracing enabled performing changes via security apis will not work (and also Admin UI Security page will not allow for any changes). I am evaluating a fix, but until then please let me know if you think this should not be a blocker. best, alex [0] https://issues.apache.org/jira/browse/SOLR-16955
