IMPORTANT UPDATE, PROBLEM IDENTIFIED: At some point yesterday, beehaw.org decided to completely defederate from lemmy.world and sh.itjust.works in addition to the other instances they already cut off from. I believe the announcement came in later than when it happened which is why we couldn't figure out what was going on.
It turns out the four admins for beehaw are also the sole four mods for every single beehaw community. By that design, they are completely outmatched at moderating every beehaw community with the entire Fediverse able to participate and decided to cut off from federation in order to minimize the large workload.
It's now impossible for users from beehaw to interact with lemmy.world users. Even if you comment on a post in a beehaw community, the beehaw users there will never see it. This unfortunately means also that the beehaw user that joined your community will never be able to create visible posts or comments in your community from that account.
Here are some posts that really get into the details and explain it completely:
- (AskLemmy Post) Anybody know what’s up with Beehaw blocking so many instances?
- ([email protected] Post that beehaw users cannot see but we can) PSA: Beehaw just closed federation with most instances, don’t use this community
- (Lemmy.world Post) Beehaw defederating effective immediately from lemmy.world and sh.itjust.works
I want to add that I hope this doesn't discourage you from building your community. It will still grow and I'm sure your subscribers appreciate you creating a community for them to participate in. And any users like the beehaw subscriber you had will hear about the announcement and create an account on a separate instance if they want to rejoin. Thank you for helping build up the Fediverse, don't let this get you down!