I lost two planets two turns in a row now due to intercept being bugged. First turn the ship didnt move at all. Second turn the ship showed waypoint towards the ship i wanted to intercept and had a selected ID of a different ship. So to my horror i saw my heading into outer space light years away from where it was supposed to go.
The 2nd thing happened to me, too. Fortunately, I rechecked the turn and saw that the dotted line had changed to another ship. I definately triple-check every intercept mission so I assume it's a bug, the Intercept jumped from one MDSF to another MDSF.