The Legendary Wyvrn at the end of Faren’s chain is too easily break barred (I’m not sure if the contribution from Slow, Confusion etc. is the problem – boss with large stacks just instantly breaks because of them before anyone even needs to push a CC).
Diamond boss inside the cave seemed bugged – never attacked. The one on top of the cliff seemed better.
Some of the Mordrem spawns for the night defense are happening in mid air and they just float there until the timer ends. These happened in an underground rally point too (is it the underground spawning thats causing a few bugs? Diamond too for example).