A lot of towers are not hitting automaticly they only seems to react when u manually click on them to hit the target.(Lina, Alchemist towers and the list goes on...)The bug has been appeared after the 7.20 Dota2 update. It is still not fixed at this point of time. I am a true fans of EleTD and would be happy to see this fix so that we could play the game again ASAP. Thanks!