Trial of the Champion - The Black Knight - way too much damage
Auchenai Crypts - Shirrak the Dead Watcher - pretty sure the first boss is not killable with this scaling he has way too much health unless you go 1-2 melee dps as 3 caster dps I cannot see this fight being doable.

I used 3 range caster dps, Resto druid, prot warrior

Not as far as you yet, but I know some of this scaling has caused issues and last January blizzard did fix some of it.