[3.20] Raise stock mission bug - Improvements in a build after 3.30.

[XGamer]

Got a mission to deliver wares to at least 75% on a station. So far so good, except it wants me to stock up a Medical Supplies factory... with medical supplies. The station is producing those and thus not buying them, but instead is selling them all the time. When I checked it said 48%, now it's at 30%.
Even the other resources the mission wants, it wants Spices, but the station isn't buying any despite only having 60% stock (according to the mission anyway) and doesn't have a spice production either.

So this mission is impossible to complete.
The mission should not pick products or intermediate wares, and care must be taken that the station will actually post buy orders of sufficient quantity to actually be able to get it up to the desired level.

[Alan Phipps]

@ devs: This type of delivery mission issue has been reported many times. Examples follow:

viewtopic.php?f=180&t=427829
viewtopic.php?f=180&t=426755
viewtopic.php?f=180&t=419831
viewtopic.php?f=192&t=426748
viewtopic.php?f=192&t=421265

I believe that the generic station/guild mission portfolio is being reassessed in 3.30 though.

[rboerdijk]

This will not make it for 3.30, but we do have improvements scheduled for a future build.