At the best of times, whether or not many special orders are made is graphically unclear and you have to reverse an order to check the status.
It also seems that the game cancels orders at the end of or even during a turn. Often units with an order to enter a structure do not. This is disasterous in areas of attrition.
Often during aturn I return to a unit which I know I have just ordered to do something only to find the order cancelled.