I'm new to HOI4, and I'm having a weird glitch with transport planes. When I establish a wing/wings of them at an air base and try to assign them to an area, they will not assign. The line above the air wings that indicates how many wings are selected says "0 selected" ... but the tranport air wings are clearly selected and highlighted (I've tried to click them to select/deselect them, and it seems to add or remove the greenish highlight, but the # selected doesn't change, and I can't assign them to a mission area). Anyone have any idea what I might be doing wrong?