Good day. I've finally managed to finish a quest (to look for "the queen" and solve a certain logic riddle). The PDA state, as final step "Collect your payment at the bar".
PROBLEM: the "mission" category is blank (I've accepted all the missions), and I have 4 credits left.
Is this a flaw that will solve the progress of the work on the game, or I'm becoming old? ^_^
Thanks to everyone will answer me!

Been a while and the quest description isn't ringing any bells for me but have you tried going back to the NPC on the derelict that's responsible for the quest? Mnay of them seem to turn in at the NPCs themselves with only some needing you to hit the bar on the station again.

Hope that fixes it for you!