This very well might apply to any keybind in the Core UI.
Basically when I Alt+Tab out of the client, it toggles the playerlist/leaderboard. This seems like unexpected behavior since Alt need to be hit first, therefore if I am holding alt, don’t trigger any keybinds,
It’s rather annoying to be playing something while waiting for a buddy, so I keep switching out, only to have to keep hitting tab over and over.
GIF for your enjoyment:
