Post process of each camera based on same global camera - split screen

Hello, we are doing a dynamic split screen game and I wondered if it’s possible to make each camera post processes be based on the same camera so that the 2 splitted screen renders the post processes the same way? Or maybe there is another way to handle this kind of problem?

For exemple the screen space reflection post process of the bottom screen will only take it’s own screen into account and ignore the above screen that contains the relevent things to reflect… So it creates a break between the two splitted screens.

Any idea on how to fix this in unreal?