HotKeySet interfering with other application when window is not active

this is my first question on this website forum.

after compiling autoit program..the program is interfering with other application even when the GUI window is not active.

For example. Bellow codes are running on my program. If I want type in something on other window like my email or typing something on a notepad "s" "g" "w" "j" "r" characters won't appear on notepad or browser or any other applications. If this is a bug is there is any patch to download and fix it quickly or any method to prevent this from happening? 

HotKeySet("{s}", "focus1")
HotKeySet("{g}", "focus2")
HotKeySet("{w}", "focus3")
HotKeySet("{j}", "focus4")
HotKeySet("{r}", "focus5")

func focus1()
GUICtrlSetState($Combo2, $GUI_FOCUS)
EndFunc


func focus2()
GUICtrlSetState($Combo4, $GUI_FOCUS)
EndFunc


 func focus3()
GUICtrlSetState($Combo6, $GUI_FOCUS)
EndFunc
 func focus4()
GUICtrlSetState($Combo8, $GUI_FOCUS)
EndFunc
 func focus5()
GUICtrlSetState($Combo10, $GUI_FOCUS)
EndFunc