So I'm just gonna get straight to the point here

For some reason or another, quests in my game have stopped updating in the Pip-Boy. Hell I think they've stopped updating altogether. I was just at Sanctuary building, when I went to go travel to Kingsport Lighthouse to finish the Railroad quest I had there. On the way, I encountered Lukowski's Cannery and thought I'd do the whole potted meat quest while I was there. Problem is, I couldn't seem to start the quest at all. There was no dialogue choice with Theodore, and I didn't get any updates in my Pip-boy or game telling me the quest had started or updated.

While I was at it, I also noticed that when throwing down signal flares, I no longer got the standard 'Vertibird will be unable to land' or 'Board the vertibird' notifications, either... Is it possible this is due to having way TOO many quests running at the same time? Is there a hardlimit on maximum amount of started/active quests in the engine? Is it possible I just broke quests somehow?

I've tried a couple different things, like starting, stopping, setting the stages and even resetting quests through the console. None of them seemed to work. Any ideas? Mainly 2 questions:

1. What causes this and 2. Can it be fixed?

Thanks in advance if you know the answer!

At least in New Vegas if you have too much quests open, I know some instances when quests does not get triggered.

Just try to finish the rest which you can and try again.