Why does it fail to retrieve several ActivityPub posts?
Users of small instances are familiar with the problem that posts don't initially appear on their own instance because the original account doesn't have anyone on the own instance who follows it.
What I usually do in this situation is copy the original URL of the post, paste it into the search bar on Friendica, and then — ideally — the post appears on my own instance so I can reply to it. Sometimes, though, this doesn’t work — and I’m wondering why. Specifically, I’d like to know why the post doesn’t load in the following example:
Have a look at the post at lemmy.ca/post/14531061 - it is obviously a post from the Lemmy-instance lemmy.ca. To discuss the post on the Friendica instance I'm on, I right-click on the Fediverse-symbol below the date of the post, copy the link and paste it in the #Friendica search bar. In this case, unlike others, my instance tells me that there is no result.
Why is this happening in this case while in case of e. g. lemmy.today/post/58928742 Friendica succesfully retrieves the post?