dovecot 3.16 replicator Problem?

Hello list, I have a problem with the replicator (config) I mean it doesn't work anymore since version 3.16?

How can you turn up the log level with this tool? I think the full sync is still possible to some extent. I deleted a test user who was restored after a day.

Question: has something changed in the config so that the whole thing works again

Thanks for a answer,

mit freundlichen Grüßen / best regards

Günther J. Niederwimmer