AI commands "Patrol"/"Guard" - no attacking + ship random moving without engines

[Rinart73]

If you command a ship (with captain, of course) to patrol or guard, it will not attack enemies, even when they start to attack the ship.

 

Also we built a stationary ship-tower (no engines or trusters + placed few inertia dampeners). Commanded to "attack enemies", it worked. But after few server reboots and revisiting the sector we found out that out stationary tower moved to 10-20 km from its original position. Without engines. Maybe game tries to simulate some life in the sector but doesn't count if ships have engines?