The payouts to Colonia are not a bug, the devs said they do not intend them to be an incentive for you to take a 20k ly trip. They are missions you may take to make a little bit of money from the trip in case you already have plans to go there.
Which is btw one of the most miserable excuses for "we failed 100% on that" I have ever heard.
These little things are the annoyances that ignite all these hate-rage-quit-rants in here - and they're only a small fraction of rage quits we never hear of. If doing something so absolutely facepalmgenerating(tm) like "take 5000 cr for 20.000 ly and don't be annoyed that this mission looks lilke every other REAL mission", please have the decency to MARK THAT THING SOMEHOW (capital letters are "action movie like typing, not shouting").