Guild Wars 2

i just cleared fractal lvl 10 with a pug group we did from lvl 6 to 10.
Agony showed for the 1st time on boss fight thus making clearing them really hard.
Monster in lvl 10 fractal can act differently then in previous lvl.
Like uncategorized fractal harpy learned a ranged aoe pushback.
we had to do 4 fractal before JAde so 5 in total dunno if it was intended or a bug.
JAde Maw lvl 10 bonnus chest got me a ascended ring and the ranger in my group got one too.

And is only some of you getting ascended ring is a bug, or is it a RNG thing?