'db-router' incomplete, Waiting for proxied DB creation from cluster

Hi all, Some of mysql-router charm get error “Failed to connect to mysql” after I run juju run-action --wait mysql-innodb-cluster/leader reboot-cluster-from-complete-outage

After that I remove and re-add relation and now I got error “‘db-router’ incomplete, Waiting for proxied DB creation from cluster”. I think it relates to this bug Bug #1972883 “db-router incomplete when relation to mysql-innodb... : Bugs : charm-interface-mysql-router But I can’t find the prefix key to delete. Please instruct me how to delete it. Thanks,

What version of the charms are you using ? I’m wondering whether your mysql-router charm contains the fix for the bug you referenced ?