I don't know if it works as intended, but i noticed that the hopper can not take items from the enderchast and that is a really bad thing, cause i was thinking about a machine where i need this king of "trick".
Is this a bug or it works as intended ?
P.S.
Sorry for the useless "Issue" but i wanted to know this.
It's intended. The hopper wouldn't know form whose ender chest it should take the items out.