The team has all 5 members and is physically present at the asteroid they should be on. I tried disbanding and remaking the team, the new one has a skill of 149 and I made a second team of skill 99 and put them on a separate asteroid. So far it's been 3 months and neither have completed a survey.
On a seperate note, is there any way to manually retire ships in commercial lines?
Edit: it looks like I won't have time to figure out the problem in this game, I only just started exploring other systems and have no real military, and 5 alien ships just appeared 1 system from Earth, going far faster than any ship I have, and immediately opened fire.