Found a problem with the Bloodlines quest (Dawnguard expansion) where I can't enter the castle. The gate opens, however nothing happens when I activate (use) the door. The only mods I can think of that would break the quest are the Unofficial Dawnguard Patch or Unofficial Skyrim Patch.

As a workaround, I'm currently think I should bring up the console, and then:

-click on Serana

-type in "coc DLC1VampireCastleGuildhall" (teleport in because the door's broken)

-type in "moveto player"

Both characters are now in the castle hall as it should be.

Any potential problems with this?

(I apologize if this should have been posted in Hardware and Software Issues or Cheats/Spoilers/Hints. I left out as many quest details as I could to avoid spoilers.)