I think you need to search for the community first on your instance to start the sync. So just paste the link into the search field (the search will probably come up empty), wait for a few seconds and then try to load the community.
I think you need to search for the community first on your instance to start the sync. So just paste the link into the search field (the search will probably come up empty), wait for a few seconds and then try to load the community.