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']
(..) Mr. Rock 'n' Roll... ...cocky as hell. Come on, old boys. Moving like molasses! Making me look bad. We liked him immediately. I'm backing out the door and I got the TV like this. A big old thing. I couldn't see shit. Then I hear this voice. "Freeze, kid, hands in the air." (..)1994 The Shawshank Redemption