First of all, sorry if this magazine is not the correct place for such questions.
I "migrated" my small community over from kbin.social since, well, it's dead. The community is Greece (https://fedia.io/m/Greece) and users from other instances such as lemmy.world etc don't seem able to see any of my posts.
You generally seem to need to have at least 1 account from that instance subscribed to your magazine for federation to kick in (which then still can take a bit of time). Same works the other way around. The unfortunate thing is that you kinda have to use external community / magazine indexers to search for them, unless you know the exact name & instance domain they're in, since a search won't find non indexed ones by itself.
Imo one of the largest issues regarding the fediverse.
Yeah, I hope it gets "fixed" at some point ("fixed" because I guess it is by design). For now, I created an account to most large Lemmy servers and subscribed to the magazine so future users find a fuller community :P
I was wondering if the language settings in a user's profile meant that they cannot see your posts. I enabled Greek but it doesn't seem to have made any difference.