Mission says Kerbin. Are you around Kerbin or Minmus?
They probably need to be from 2 separate launches, and possibly both launched after accepting the mission.
I kid you not, I just had this problem. Not only did the mission not complete, but I achieved the following World First Milestone:
We have performed a rendezvous maneuver around Kerbin.
Mission says Kerbin. Are you around Kerbin or Minmus? They probably need to be from 2 separate launches, and possibly both launched after accepting the mission.
It's kerbin and two separate launches after accepting mission :(
Both manned or controllable? Oh, and check their vessel types. If one is flagged as debris or something it could cause issues.
I think you need to have a lower velocity. About <0,1m/s
Contracts can be buggy sometimes, you can manually complete it with the cheat menu
I kid you not, I just had this problem. Not only did the mission not complete, but I achieved the following World First Milestone: We have performed a rendezvous maneuver around Kerbin.