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']
(..) - Oh, he never stops. Do you know Ser Hugh of the Vale? Not surprising. Until recently, he was only a squire - Jon Arryn's squire. He was knighted almost immediately after his master's untimely death. Knighted for what? - Why are you telling me this? - I promised Cat that I'd help you. (..)2011 TvShow: Game of Thrones Title: Cripples, Bastards, and Broken Things Season: 1 Episode 4
(..) so sweat will never run into my eyes again, which is good for a driver. When they heard about your condition, Ferrari immediately hired a replacement driver, Carlos Reutemann. Yeah, before ever reaching the hospital. - Is Reutemann driving today too? (..)2013 Rush
(..) You need to assure me that those people are safe. They're gonna secure our exit and escort us out of here. Call them right now, immediately. I want all heads of department over here. And I want a fucking war room. We're gonna make our finalized plans. Now, listen, listen. (..)2016 13 Hours