Has anyone ever had this problem?
Im completing a mission with a mate and jump back to sectorspace.
Ready to hand in the mission to get the reward I hailed starfleet.
BUT the mission was not in the missionlog....nothing.
Hailed Admiral Quinn....no mission to hand in.
Is it possible that the completed mission dissappeared because my teammate has collected the reward before I could do it?
Some missions auto-complete, similar to how the patrol missions you automatically get from entering a system do.
For Quin, there's three, the ones related to entering an exploration area. Believe that is working as intended.
Another one that works that way is Exploring the Hrodi thingy. Unlike other exploration ones, it auto-completes, gives you the reward after completing the 3rd system. I believe that this is most likely a bug, since the behavior differs from other exploration missions.
If it wasn't one of those, then, nope, never seen it happen.