Actually, this is a list of nations available for endorsing rather than nations you haven't endorsed. There will be a web tool that allows you to enter your nation name to get such a list.
Just include the link to the dispatch on your post.
It might just be me, but that dispatch with the list of names frequently crashes my browser. It did it here twice on the region page where it's just showing the preview, and also happens when I click the link on other SWAN dispatches probably 80% of the time.
I'm using my mobile, using Chrome if that makes any difference.
I use Edge for some stuff, and mostly Firefox which ive used for the better part of a decade. Used chrome 2 years and stuck with firefox since.
Edge is just for some stuff that is stupid and wont load on firefox which has happened to me.