Hi guys,
I was always been using F keys as a MAC keys like keyboard brightness etc, and also Launcpad key.
Then I did go to Settings > Keyboard and there is Launchpad & Dock, and there is Show Launch pad and I accidentally pressed on there, where it shows what command do you use to show it, I pressed F4 which was always been used as a launchpad key and it doesn't open anymore...
edit:
Even that it shows that is F4, it does nothing when I press there. Mission control button works perfectly and opens mission control
I was always been using F keys as a MAC keys like keyboard brightness etc, and also Launcpad key.
Then I did go to Settings > Keyboard and there is Launchpad & Dock, and there is Show Launch pad and I accidentally pressed on there, where it shows what command do you use to show it, I pressed F4 which was always been used as a launchpad key and it doesn't open anymore...
edit:

Even that it shows that is F4, it does nothing when I press there. Mission control button works perfectly and opens mission control