No. What I mean is after you complete your mission, and you pick up a daisy or something. That's not coming with you is it? Since it took place technically after the mission. I lost some materials like that one time.
Hopefully I explained that right.
No if you picked it up right after the mission it wont count, but keep playing, as soon as you see the yellow round thingie that indicated it saves, as soon as it's gone yo ucan bail out and it'll follow you. I farmed 200k fuel with kind of the same way, started a mission, knock down two guys, loot the container, trigger a save, restart mission. Took me about 40'ish minutes to farm 200k