I picked up 2 crossbows from piglins and they both went to my hotbar.  I shot off one of them, cause the other one looked like it didn't have an arrow in it, but when I opened a chest, the crossbow without an arrow suddenly showed that it had an arrow in it.  Once I moved the crossbow to another slot or my inventory, it showed correctly, but initially it does not.  Minor bug I know, but still a bug.