I have been having the same problem since January 20th. I reset the mission from the Outpost and that didn't work. So I went back to the spaceport and reset it again, still didn't work. I put in a support ticket and as of this writing today I still have not heard back from Customer Support. I went to Alderaan today and unknowingly picked up the next class story line; however when I returned t Tatoooine the Find Fuse story line was still stuck! I'm shaking my head here ... I will try to use the space bar next time I'm there and will post here if that works for me.