Zuhl3156
When you're on the very bottom floor of the factory walk up to the Protectron. Turn left and climb the stairs that turn to the right at the top. Walk to the end and look down at the handrail on the right and you'll see a red button to press. Until I finally noticed that I even got out of my Power Armor and tried jumping across that gap but that wasn't happening either. LOL
Thanks Zuhl for the tip.
I also found my missing construction packages. It would appear that you have to wait a bit before they show up in your inventory.
Glitches that I have found so far:
Drinking water from a well. It will do an endless loop and is very difficult to break. I did it twice and both times the same thing. I'm playing on a PC and I do not know if this is the same for console.