User reports this work correctly in 4.24, but now no longer works as expected in 4.25.I don't have a clear CL just yet, marking unconfirmed.
If you change the settings to use ES3.1 Preview and just Play In Editor, each area renders the correct color.
1. Open attached Project.
2. Set Preview render level to ES3.1 Preview
2. Play in Mobile Preview ES3.1 (PIE).
3. Move the character around the level.
Result: As you move the character around the whole screen color will be tinted the same color.
Expected: The screen tints should be based on the absolute position of the surface that the pixel on the screen represents.
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-98089 in the post.