I went to do the highsteppe gate event and was lagging hard with fps (the steam loading screen appeared a couple of times) and after I tried to head towards the highsteppe crystal portal event but couldn’t.
I tried looping around to go up the hill to the event from the opposite side but got stuck by the graveyard with the same issue.
I could slide or teleport up to an invisible wall but it wont let you pass along a straight line. I relogged and that fixed it but was an odd bug.