rpottorff,
So you are going to want to edit the Post Processing Settings of the Scene Capture 2D Actor. There are two ways to going about doing this.
If you would like to have your post processing done on a per player camera basis, and not the world volume, you can modify the ‘Auto-Exposure’ setting for the darkness you are seeing by setting the Min and Max Brightness to 1.0.
Then modify the ‘Screen Space Reflections’ min roughness setting for the specular highlights of the water’s surface. The higher the value the less aggressive your specular highlights will appear.
It seems you are also using the ‘LDR’ or Low Dynamic Range instead of of the ‘HDR’ or High Dynamic Range for the Capture Source. HDR supports things like bloom and auto-exposure. You will want to use HDR for the scene capture actors to have an identical image to your active player camera.
As the second approach instead of modifying the values, you can also just try setting the ‘Post Process Blend Weight’ of your Scene Capture Actor to 0.0. This could be an easier fix, but eliminates the ability to control the Post Processing of those Scene Capture Actors.
If you come across more questions or need further help, please let me know.
Cheers,