The mag is reachable and I am subscribed. But if I try to crosspost this:

https://fedia.io/m/humanrights@crazypeople.online/t/4433054/How-paper-cheques-are-critically-important-to-our-human-right

to !belgium@europe.pub, it’s impossible. I was able to cross-post to a few other places, so it’s uniquely a problem with europe.pub.

(edit)
It looks like the problem is that the pull-down list has a fixed limit on the number of choices, and belgium@europe.pub does not make the cut even when it is fully specified. It’s quite aggrivating that the first half of the list space is wasted on irrelevant junk (random, pets, etc).