Staff of herding recipe droprate?

I have killed Izual 51 times now and no recipe dropping on t10. Altar of rites is a good thing, but when you are unable to get further its kinda bad. I begin to doubt i even get it, I have never experienced it being this hard to get the recipe.

I remember seeing players with similar problems in last season (on the US forum). Going after Izual over and over with no result. Other items can also be tricky. What about trying a different level than T10? Some items will drop on normal, some are best at a higher level.
I always have a look at maxroll.gg and their D3 section.

PS. I also remember seing some who mistakenly ran another boss (like running Azmodan instead or something like that).

yea i just got in now finally just need two more items to craft it, so are on the track at least.

Haven’t gotten so far yet. Unlocked nine nodes and done a gr 70 solo (SSF player).
Last season wasn’t so bad for me getting the staff. But you never know.