Issues, Workarounds & Localization

Yesterday a storyline agent offered me a courier mission which required me to transport 40.000 m^3 of cargo. I used a Deep Space Transport for it (since it has a 60.000 m^3 fleet hangar and it was the fastest ship for the job), but I got annoyed by popups telling me that my ship doesn't have enough cargo, and that I'm leaving the station without cargo (even though it was in my ship's fleet hangar) - obviously implying that fleet hangar is ignored when looking for my cargo space, or items location.
I'm sure the same thing would have happened if I used any other ship with a nonstandard bay (like an Orca), and the last time I did mining missions they had similar problems (I had to drop my ore from the ore bay into the station hangar for the agent to recognize it).

I'm sure I'm not the first person to report this problem, but CCP is obviously just being lazy to fix it, which probably only requires adding few lines of code.