#IfWinActive doesn't work after Creators Update Windows 10

[bug reporter 753]

After I updated my Windows 10 to version 1703 aka Creators Update, #IfWinActive and #IfWinExist stopped working completely. They never "see" the window being active or existing. My scripts I used until now stopped working, I tried to fix this, but updating to latest AHK and toying with my code didn't help at all. I think these hotkeys are just broken now.

[haichen]

I tried the first example of #ifwinactive and it works for me.

Windows 10 64bit Version 1703 build 15063.138
Autohotkey 1.1.25.01

edit:
#IfWinExist also works

[amadeus1171]

Well, here's another caveat. I use AHK to switch windows between Final Fantasy XI instances. #IfWinActive works, but WinActivate momentarily freezes the game after switching to the next instance. Using alt-tab doesn't freeze the game, but WinActivate does. Anybody else experiencing this kind of freezing?

[lexikos]

So, knowing from the start that the Creators Update caused the problem, why do you assume it's an AutoHotkey bug?

I am using v1703 and have not encountered any issues.

[amadeus1171]

Maybe it has something to do with the WinActivate code? I'll try with two different windows.