Ashe Q issues. Stands still when champs move out of range.

I have noticed on latest patch that when you activate Ashes Q she will attack for a bit then stop. For example if you are attacking a minion wave she will stop attacking when the targeted minion dies and when attacking champs if they move out of range she will stop attacking and just stand still, this also happens in team fights if the targeted champ moves out of range but the other champs are still in range she will just stop attacking or moving. at the moment you need to keep targeting other minions or keep clicking on the champ as they move out of range or she will just stand still.