I was gambling in the casino and I was winning it big, when I was finally done I tried to pick up all my winnings but the game told me the max I could pick up was half of it (roughly, slightly less actually as you can see in the screenshot). I thought that was weird but whatever I picked up the first half and then I put in the inputs to pick up the second half, and I probably pressed a few more buttons as well... and then the textbox didn't go away when I was done.

The second picture attached is what happened when I made an item note in my inventory, it copied pretty much anything I wrote anywhere into the floating textbox, also weird. It didn't write out my movement commands or anything like that, only when I got a typing prompt did it copy that stuff.

The floating textbox went away when I saved and quit and restored the game.