First of all, for me at least the bar in the 3rd part does not work. As in I am putting the stuff inside of the machine that is meant to be researching, I have unlocked it but the progress bar on the termnal does not move.

Additionally I believe a tips screen would be nice, at least to explain what exactly is that linked belt and terminal, as in my case I believed the belt was meant to transport items into the terminal instead of into another area.

And a final bit of crittique, I believe there should be a warning to the player that if they go down they will not be able to go back for quite a while.

3rd part, you have to craft 500 times, and the bar moves according that number raises...
Thanks for the feedback... will add the warnings

Hm, then yeah it simply just didn't tick up. I have a mod that removes spoiling which might be the problem in the case that there's a secret spoiling item that triggers the advancing of the bar. But I did blacklist every item from the mod so it does not seem like that was the case.