Guild Wars 2

I’m not a normal WvW’er but a month or so ago I completed the Eternal Battleground map and now it has been reset. Do I have to get all the poi’s vistas and SP’s in EB again in order to get full map completion?

Are you sure you didn’t do it on a different character?

Yes. I definitely didn’t do it on another character :\

Never heard such a think. The one thing I can think of is that you are mistaking the eternal battleground with your borderlands. Those do change. Test this out to join your borderlands and then go to EB.
or else you got some weird bug.