I'm encountering a rather strange problem lately.

I'm currently flying around a system with my X-Wing Squadron. Sometimes during movement from one point in the system to another, one fighter would leave the squadron all by itself and stay behind.
It's not even always the same fighter, but a random one that escapes the group.

I'm piloting Fighter 1 and all the other 11 fighters are equally assigned a NPC, so they would usually follow me around.

Did anyone encounter a similar problem and knows how to solve it?

Just one question, do you start the next travel immediately upon arriving (at almost the precise second) ?

No, that wouldn't be possible, would it?

There are usually a few hours before I send the ships somewhere else.