[MAP] Invisible Obstacle on Coast of Grana

Bug Name:

[MAP] Invisible Obstacle on Coast of Grana​

Bug Description:

Can not swim on nearest coast of Grana.​

How to reproduce/proof:

I jumped from cliff which is next to where I am with my horse. I landed in sea. Wanted to keep going but could not move more . Thought maybe it is cuz of the horse. I left the horse and start to swim, still same. Could not move further. Than I said ok, lets go back, found a way to coast but could not go up there as well.
Here is the location:

​

 

Not a bug its rigtht client blocking of zone