Can't finish mission 1

I've defeated all the ships plus the station at the exit but if I go to the next level it says mission 1 not finished. I have 3 objective stars in green but I've already been there and they are empty. This happens twice in a a row. What do I have to do?

There might be something wonky with some of the missions. Which race were you playing? Just ignore the message, as long as you can travel to the next galaxy you have pretty much done your job

Don't remember which race. Thanks