I am messing around just with a friend and I try to fully upgrade my wand, i can't switch inventories between spells and one of the hotbars becomes the same as another.

I am messing around just with a friend and I try to fully upgrade my wand

Legit or via commands?

i can't switch inventories between spells

Tried clicking outside the inventory?

and one of the hotbars becomes the same as another.

Using creative mode?

I am using commands and in creative and yes i clicked outside

Wands don't really work in creative mode.