Confirmed
Depends on angle. See mine https://bugs.mojang.com/browse/MC-88120
It's the same problem. Sorry for duplication.
Ahh thank you! Already thought about that, but then I thought.. why wouldn't it?
---EDIT---
It works properly in snapshot 15w36c again!
Still does not work for me. Neither in a new created world...
Anyone else having this problem too?
/replaceitem entity @a[team=Pit] slot.hotbar.2 bow 1 0 {ench:[{id:48,lvl:6}],display:{Name:"Flaming Arrows",Lore:["Hit multiply enemies","near the landing spot"]},HideFlags:1,AttributeModifiers:[{Operation:1,UUIDLeast:1,UUIDMost:1,Amount:0.2,AttributeName:generic.movementSpeed,Name:whee}],display:{Name:"Flaming Arrows"}}
I hope this gets fixed soon, I really need it