One instance can't discover a post, another one can
Situation: You use Hubzilla's search to search for a Mastodon post by copy-pasting the URL of the post into the search field. But the search doesn't find the post, nor does it get stuck at searching. Instead, it immediately throws you back to
your HQ.
You go through your contacts list. You check whether you're restricted the account from which the post came as well as the account from which the first post in the thread with that post in came. You haven't.
Can the reason for this behaviour be because either of these accounts has blocked you?
I'm asking because it happens increasingly often that my main on hub.netzgemeinde.eu sends me back to my HQ when searching for a Mastodon post, but my clone on hub.hubzilla.de finds the same post with no problems.