if setting up a connection to Nextcloud 12 (on port 4430), there seems to be an issue.

1.) Kopanofiles can not connect to Nextcloud (all connectionsettings are ok).
2.) It seems like it tries to connect over and over again
3.) While these “tries”, you are unable to use the Deskapp (or Webapp) cause synching is blocked by Kopanofiles, which is trying to connect.
4.) You are not able to deactivate Kopanofiles or edit the settings of it, cause even this is blocked.

Kopano Core:

Is there a known issue concerning kopanofiles, when using a non-stadard-port connecting to nextcloud?