Screenpercentage bug(?) 2DSceneCapture Component not working as expected

Idk if I might be doing something wrong here but I am trying to capture what the player sees with a Scene Capture Component as a child to the camera → send it to a rendertarget → Rendertarget displays on the entire UI with the rendertarget as an image in a retainerbox. But when I do this it doesn’t look the exact same as the player’s view since the player’s view is using Screen percentage to lower the resolution but this isn’t applying in the scene capture. I know there is an option to ignore the screenpercentage but that is not checked and doesn’t seem to be working.

Does it have to do with WHEN the screen percentage is applied that is causing this? Because I can change it during runtime and that doesn’t affect the captured render at all but it does affect the normal game view.

I’m trying to achieve a sort of frame blur/slow shutter speed effect. Like this https://www.youtube.com/watch?v=fXxqoteOd1g
Or like what the PS2/PS1 achieved for motion blur like this guy has https://youtu.be/3OQnJfYKLFw?t=27

Essentially how I see it, all you gotta do is freeze the previous frame/frames overlay the frames over the new one with a lower opacity. I managed to render to the render target, display it on screen with a lower opacity but it doesn’t look the same. When I achieve a proper image I just gotta update the render target/retainer box with a slight delay which I have managed to achieve by controlling when the retainer box updates.