I totally agree I have experienced all you have described. It’s a totally mess and it’s ridiculous. I have even done 2 cargo hoist where the drop area are 3300 nm away😂 but 4nm on the map. But when I arrive the drop zone doesn’t trigger.
The cargo gets invisible at times when in the air. Resulting in that you can’t se the cargo when dropping it.
The best thing is to not play the missions until all the bugs are gone. But they use us as beta testers so maybe we need to 
It’s so frustrating and it could be amazing if they fix all of this bugs