Why don't the lazy bastards attack?

[Baron Grazic]

Same thing happened to be Last turn in a PBW game.
I took over a ship via intelligence that was parked on an enemy planet, I ordered it to attack the planet it was sitting on and next turn - Nothing.
It still had the orders to attack however.
This turn, I've ordered it to 'Move' away from the planet & then move back. I'll see what happens next turn.
Another strange thing was by intelligence I took over a SS and the following turn it was attacked by a ship with Phased & Null weapons. At the end of the fight, the SS had been 'Taken' and is now back to their control.
Any noticed a bug like this with Ships taken over by intelligence?