Command Doens't work anymore

So i Made a Little Function Spawning a bat and executing from her some things to create a "Enderhopper" in the 17w50a Snapshoot and now realized that i can't execute anything from the bat anymore in 18w01a

for Example:/execute at @e[type=bat,name=enderhopper] as @e[type=bat,name=enderhopper] run setblock ~ ~1 ~ minecraft:hopper doesn't work anymore (worked 17w50a)

after executing the Commands Nothing happens not even an error message