Guild Wars 2

I have tried to do this quest twice on 2 different characters and I even switched to a different computer. The same thing happened every time.

Zone: Bloodtide Coast
it is in Whisperwill Bogs
quest is Help Cesseilia defend and research the oasis

The bug that I am having is this. I go and get the three ingredients for the potion. I take them to Cesseilia so she can brew it. Once she brews it and tells me to use it I cannot move. No matter what I tried my character stands in one place and will not move. The only thing that fixes it is to log out to the character selection screen and then back in game but then as soon as I do the next potion the same thing happens again.

When I did it this time there was someone else there that said they were having the same problem.

Exact same issue, have to hail the npc while standing close to the spider cage so when you get rooted by the bug you can still use the potion and then log out.

The exact same thing is happening to me, too.