try moving the camera through the door then targeting. that might work for you.
i've noticed some of the doors have issues after patch 3. not all, but some. it's not possible to click through them because the cursor gets stuck on the open/close door icon. but if you move the camera through the door, it works again. or if you close the door then reopen it, it works again.
i imagine there'll be a hotfix for this at some point, or so i hope.