Ive recently discovered/enacted the cheats command for a few select lifehacks, however since then many of my ships will revert to sitting idle after one turn. The only way around is to set to auto-explore or survey (if capable) or to set destination at either a hypergate (works 50/50) or an existing colony. It also seems to be getting worse with each new game started. First universe I tried.. had an existing fleet of trade ships just quit. Now it seems like 8/10 ships (colony and constructors) in a new universe quit working. 

Did I inadvertently switch off something in the commands?

Or anyone know if this is a bug?