I'm listing these as bugs, but one could call them spoilers as well, so going to put it all in spoiler tags.
Spoiler
The other quest I had an issue with was the one with Rex at Trinity Tower. There is an elevator on the ouside of the tower walls. Rex, a super mutant and myself all were on it. I got off, the super mutant walked off of it, but Rex just stood there and did nothing. I couldn't talk to him, I tried shooting him and nothing happened. I did reload the save game on the Rex quest, he simply will not move.
And regarding the Polymer Labs quest, I have a save about 14 hours in, and discovered the building but didn't go inside yet, so that is the save I load from for that quest.
Anyway, just letting you guys know, there are some major issues going on with quests which, I've seen a patch and current work being done on a beta patch. My expectations were really a lot higher for the game on release, as I come from a time when PC games would release with no issues. But you are working on them so I'm waiting to still really be able to play the game the way it was meant to be played, as a huge part of Fallout is questing and successfully completing quests which at the moment, I cannot do.
And no, I'm not interested in workarounds to get things to work. Things should work on their own as they were meant to be. If you have to use a workaround to get something to work, then that something has an issue that needs to be addressed.