This is an old bug on an old character. When I got to the rank of Fleet Admiral, I got the normal promotion quest, but am unable to complete it as the NPC does not respond to the quest. I've just hidden it in my log for years now.
Looks to me that you obtained the mission at the time you needed to return to the 'home' area to speak with your faction leader.
However, you never made it back - probably due to the character going unplayed for some time.
During this time, the promotion missions were changed so that you didn't need to return to your faction leader.
Now, you cannot progress because you still have the old version of the mission.
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However, you never made it back - probably due to the character going unplayed for some time.
During this time, the promotion missions were changed so that you didn't need to return to your faction leader.
Now, you cannot progress because you still have the old version of the mission.