I just started the main quest "Picking up the trail" and for some reason when I got into the Citadel Laboratory I looked around and I couldn't find the map that Rothchild takes us to so that he could show us where Vault 87 is located. I looked where my brother said that that map is located and somehow the entire map of all the vault locations disappered and I mean it just toally disapperaed and I tried every single thing that I could think of to fix it but I couldn't.

Hi, does your quest marker take you to knowhere? like in the middle on water? If so the EXACT same thing happened to me. i couldent even find rothchild though. So really all you have to do is go to little lamplight talk to the mayor and the black kid(no offence black people of the world). From there either hack the terminal ot head through murdur pass. As soon as you step a couple of steps into the vault it'll say objective completed -find the geck. Or something like that. As i said the exact same thing that happened to me, i was so worried that my quest like was completly stopped and im-movable. Just enter the vault via hack or murder pass. PROBLEM SOLVED AND if this isnt your problem then sorry to waste your time bro