unlike most 4x games unit focus is NOT lost after it can no longer move. at the very minimum unit focus needs to be lost so the cursor does not think I want to plan the unit's move for next turn


a better option would be a game switch that AUTOMATICALLY either 


1) sends unit focus to the next unit after the current unit can no longer move, preferably to the nearest unit, NOT the next unit in the army group list, 


OR


2) just ends the focus on the unit and let the user (not the game) decide which unit to select next