Leap 15.6 - dovecot and apparmor

Hi *, today I migrated one of my servers from Leap 15.5 to 15.6. So far everything works ok, besides: map-login: Error: net_connect_unix(/var/run/dovecot/stats-writer) failed: Permission denied imap: Error: net_connect_unix(/var/run/dovecot/stats-writer) failed: Permission denied managesieve(<username>): Error: getpwnam(vmail) failed: Permission denied (from mail_uid setting) managesieve-login: Error: net_connect_unix(/var/run/dovecot/stats- writer) failed: Permission denied managesieve: Error: net_connect_unix(/var/run/dovecot/stats-writer) failed: Permission denied Any idea, what to configure to get rid of these errors? TIA. Bye. Michael.