The cause of the problem was not 'immediately' clear. [=is was not known right away]
They live in the house 'immediately' [='directly'] behind this one.
We need to leave 'immediately'. [='at once', 'right away']
(..) - It's not a button. It's a simple lever under the *something*. - Got it. - And there's of them. Once you have activated lock, there should quitting immediately. If the hatch is opened when the CPU starts next cycle you are gonna get sucked into space. What happens when the hatch isn't opened? (..)2016 Star Trek Beyond