I have been trying to Cube a Dawn crossbow for my DH, and so far, it seems, 85% of the drops are Danetta’s Spite and Revenge. I must have rolled a dozen so far.
It looks to me Blizzard have assigned weights on the Dawn’s loot chances ? Same as the Restraint ring, so hard to get, whereas I have a trunk full of Focus!
This happens sometimes, your’e experiencing the Dawn Syndrome…
-slow RNG. Just keep at it, it will drop eventually 
yes, Blizzard weights everything, which is not true RNG imho. Random should be everything has the same chance of dropping, not weighting it so that garbage comes up 99% of the damn time…Dawn is always a nightmare to get btw. Frustrating to say the least.
I got it yesterday 
However I have also got 2 Ancients (one crafted one rare upgrade) which are so overpowered, but any way , it’s the Dawn now for me.