Sword attack direction bugged?

When having your ranger selected and you move your cursor on the enemy tile you can choose which direction to attack from. Once the direction is locked in you would still have to select a weapon (i.e. sword) and confirm to attack. This used to work fine for me until now.

However, now selecting the weapon after locking in the direction will deselect the target and pick a random new target. Changing the target at this point means not getting to select a direction of attack again, but getting a preselected random one.

Selecting the weapon first doesn't allow one to pick the direction of attack.

Does anyone know why this happens and how to fix it?

(note: it now spans multiple missions / reboots, so it doesn't seem to be going away by itself... my rangers just became basically unusable in melee)