[Question]Adding water = disconnect?

[dumdedum]

So, after taking a long break from WoW, I come back and now every time I try to add water to an area, the game will load, I'll see my character for a moment, then I will be disconnected.

I also can actually see the added water in that moment before disconnection, so it is working.

So, any ideas behind being instantly disconnected? Any change in MPQ format in the past few months?