I've only recreated this bug twice due to lack of materials, but here are the details that I have gathered so far:

1. No skill points in tech tree whatsoever. Base level 3 attributes in tech.
2. Crafted green Max Doc. Mk1 in lots of 20 or 40
3. Had Bounceback Mk 1 in quick slot at the time of craft
4. Ended up getting +crafted amount of Max Doc and +crafted amount of Bounceback

I don't mind getting a bunch of extra meds from my crafting, but this is clearly a bug.