Hello everyone! I know this is an old thread, but wanted to say this has been happening to me lately as well. Every time I solve a puzzle at the Manufacturing Facility, it seems to glitch and I am not allowed to pick credits, Nannites, or a Blue print. This happened quite a bit, so I kind of gave up. I tried again and the same glitches happened, I received no option to receive a reward.
So I tried warping to a brand new system where I had not explored any of the planets. The first three manufacturing plants I solved all gave me the option to select blueprints again. I took a portal back to my home base because I was overloaded with stuff. I put stuff into storage, and went to a new system with unexplored planets and tried again. I’ve tried five manufacturing plants in this new system, and I don’t know if it’s bad luck or what, but all of them were ones that do not give a reward.
So, I thought going to a new unexplored system would solve this, but I’m not sure it did…?