Yeah. Don't really know what else to provide. Using an unmodded 1.17.1 on my own singleplayer creative world (cheats enabled), but it doesn't work on multiplayer servers either.

My respective controls for loading and saving a hotbar are x and c, as shown [here|https://i.gyazo.com/324bfa509a27a96f761f196e68f13005.png.]

I've already got 1 saved hotbar from the past.

Pressing 2 (or any other number) while holding down C does nothing.

Pressing C and 2 (or any other number) simultaneously does nothing.

Pressing C and 2 (or any other number) in frantic, chaotic patterns does nothing except maybe damage the keyboard.

So what the expletive is going on?