They should be. There is currently a known bug that causes some messages to either take some time to appear or to be lost if they're not sent out in time by your server, which can happen when it's saturated. Fortunately the new lemmy version coming out tomorrow fixes this.
It can also be related to language filters that could be on by default.
Where do you go to keep track of new lemmy updates? Their github?
This is the bug I’ve subscribed to for updates on this issue: https://github.com/LemmyNet/lemmy/issues/3101
It’s surprising to me that it’s not the top priority. Needs more thumbs ups!
It looks like lemmy is competing with mastadon on comments and posts with only quarter the user numbers
Basically it's lemmy scaling and thereby uncovering all the stuff that does not scale well. It will be fixed soon, right now it's basically growing pains.
I've also been experiencing this issue from other lemmy.world users when they're responding to posts I make on lemmy.ml. Their comments just aren't appearing outside of their instance.
You may be doing nothing wrong.
I've noticed something similar today, and it seems to be on a per-instance basis. Some instances federate almost immediately, others take forever. I think it depends in part on how their back-ends are behaving. When my server federates with something that's running well it goes pretty fast because there's only 2 people on my instance and the hardware is pretty decent. On the other hand, some instances have a lot going on.
A community to talk about the Fediverse and all it's related services using ActivityPub (Mastodon, Lemmy, KBin, etc).
If you wanted to get help with moderating your own community then head over to !moderators@lemmy.world!
Learn more at these websites: Join The Fediverse Wiki, Fediverse.info, Wikipedia Page, The Federation Info (Stats), FediDB (Stats), Sub Rehab (Reddit Migration), Search Lemmy