No rare(s) spawn in Ohn'ahran Plains for 2+ hours?

I’m not sure if it’s karma or something…

But I’ve been waiting for over 2 hours (00:00 to 02:00) EST for rares to spawn in the zone of Ohn’ahran Plains… since I’ve been hunting for the “[Adventurer of the Ohn’ahran Plains]” achievement, and also hunting for mogs along the way.

Is this behaviour normal? Also, the Water-Bound Chest being bugged and timer stuck at 00:30 second before it begin.

This is on the Thrall server.

I went on another server (Zul’Jin) and it was workign as intended.