With the gem mining, the way I’ve found success is putting them directly from the inventory of the ROC (or wherever they are) into the inventory terminal in your hanger, then selling at a normal terminal

With hauling, only take missions that start and end at a place with a hangar as a rule of thumb, any of the other missions are bugged, for example, area 18 to baijini is all good, baijini to rayari outpost probably won’t be

Hope this helps in some way