Mine works again.
I did the same thing some one else did; went to the Delta Volanis Cluster, got the mission from Lieutenant Grall, went into a system, and I could slot Bridge Officers again.
I think that the problem has something to do with either:
A) getting a new ship (I got 2 right before)
B) the anniversary mission (the Ambassador was one of said ships)
C)The Doomsday Device mission (I had just finished the first part)
D) All of the above
I have seen other posts from people who also did these things and got the bug, and I did them all.
Had this one too. Tried all the suggested approaches. The one that worked for me was adding a new BOFF, (I happened to have an open slot), I had to put the new BOFF in each slot to open it up. After that I could assign normally.
I'm having the same problem. Completed Temporal Ambassador as Klingon. Tried switching into the Kamarag Refit. Can't assign any BOFFs. Have tried all the suggestions in the thread and nothing is working.
yesterday I couldn't slot on my new ship and today i started a new character and when it came time to claim my new ship after being promoted to Lt Commander I couldn't pick a ship and there was like a hiccup in the game play and now it says i have to pay for a ship. it never gave me my free one!