If I click on a clip in Session view my view changes to position that clip at the top of the screen.
So if there is a clip in scene 5, scenes 1-4 wont be visible when 5 is selected.
This only occurs in Live 12.
If I have only 8 scenes in the project it doesn't happen.
Could be connected to the redbox. I have a LaunchcontrolXL & Launchpad Mini that both display "redbox" position.