I’m not sure if this is the wrong place to post this; my apologies if it’s not.

Anyway, I have an inquiry about Mastodon replies seeming to not post to show up on Lemmy.

Earlier today I made a post on Mastodon and made it post to Lemmy as well, by @ing the community I wanted it to appear in. Here’s a link to the post on Mastodon, and here’s how it showed up on Lemmy. At first, everything seemed to work fine.

But something I noticed is that, though the Lemmy comments were visible to me on Mastodon, the reverse was not true: most of the Mastodon replies were not visible on Lemmy. So there seems to have been some federation issues there.

So my question is, does anyone know what caused this and if so how I can fix it?

  • julian@activitypub.space
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    4 days ago

    > @[email protected] said in Mastodon not federating to Lemmy?: > > So my question is, does anyone know what caused this and if so how I can fix it?

    Mastodon doesn’t know to send replies to the community for distribution to the rest of the threadiverse.

    Long story short if you’re not on the same instance as the community, Mastodon replies to you won’t make it to the rest of the threadiverse.

    I experimented with a hack to see if I could fix this. NodeBB works around this by including a hidden mention to the community that Mastodon will then pre-fill in the text box, and then the reply will make it in successfully. If you have a Mastodon account try to reply to this comment, the community will be pre-filled as a mention.

    Piefed, Lemmy, and Mbin will need to do this.

    Does it work? Yes

    Are we supposed do it? Technically no, it’s easier to blame Mastodon for not doing it right.

    Should we do it? Probably, yes.


    @[email protected] @[email protected] @[email protected] @[email protected] I tested this. It works perfectly fine. We can implement this today and remove it when Mastodon supports threadiverse conversations better (I’ll try to make that happen.)