Flame Strike+ Burning Patch doesnt ever crit, never proc weapon enchantment

Can we have someone look into it? Arbiter AOE daily skill Flame Strike with and without Feat for it, doesn't ever crit and does funny little dmg.

Here is video
https://www.youtube.com/watch?v=ch8rSCnNEZw


edit: initial hit sometimes crits, but never the follow up dmg