Loop script issue ?????

[RobinMalhotra]

I am new to this, and I am trying to run a script in FF4 that grinds battles for me. The entire code (aside from the default stuff at the top) is:

f::
loop{
Send, {Up down}
Sleep, 1000
Send, {Up up}
Send, {Down down}
Sleep, 1000
Send, {Down up}
Send, {k down}
Send, {k up}
}
pretty much i want it to hold the up key for 1 second, hold the down key for one second, and then press k (confirm) to get out of the battle screen and continue to grind. initially, k was the enter key but it seems switching key bindings didn't help.

When I first ran the script, everything worked fine. I came back to it a while later, and that was when it no longer recognized enter inputs. I changed it to input k but that doesn't seem to help. Why did it stop working all of a sudden? How can I fix it? Thanks in advance.

[tank]

return

[tank]

also do you intend to have an infinite loop?