For example, press ESC to bring up the main menu with the "Game" submenu but don't click "Reset" - press F9 instead. Nothing happens.

Press ESC twice to dismiss the main menu. Then press F9 again. Now the "Reset System?" msgbox comes up.

Code:
ZC Player, Version 2.55
Nightly (Alpha 119/120)
Build Date: 3rd February, 2024 at @ 07:17:57 EST
Built By: UNSIGNED
Tag: 2.55.0 Nightly (Alpha 119/120)