Steps to Reproduce:
Grab any item that can be placed in the off-hand (shield, filled map, totem)
Open your inventory
Hover the item’s slot and press the key bound to the “Swap Item with Off-hand” action
Observed Results:
The key does nothing in container screens or the inventory.
Expected Results:
The key also swaps items in container screens and the inventory, like the keys bound to the 1-9 hotbar slots.
Notes:
Can confirm