Equipping item from inventory does not play a Down sound when equipping fails
If you try to equip a broken weapon, or try to equip a new weapon in the middle of attack, Morrowind displays a message box and also displays a Down sound if you do it via drag-and-drop in inventory. When you try to do it via quick keys, it displays only message box, without sound. Not sure about when you try to equip an item via script.
OpenMW always just displays a message box.
And I suppose that the related function is InventoryWindow::useItem
. The problem is that this function is used everywhere in UI, including quick keys menu.
Edited by Andrei Kortunov