Motion artefact problem

Hi,

I’ve got a problem with my map that seems to be motion blur or something similar but I can’t remedy it.

As you can see from my map as you go towards the water the orange material carries over on to the water, how do I fix this?

https://1drv.ms/v/s!Av7kWIyrlSmzgd8xdBC6AY9y1v5CTQ

Motion blur is unchecked in project settings so I’m tearing my hair out atm!

Video quality is low, but as I can see, problem is in reflection capture. You have one for whole level or/and bad placed, so on water you have reflection of this big orange mesh material. Check tutorials how to make water in engine, set reflections - sphere, cube or planar - depending on your project.

This is what I think, but without seeing project directly, hard to be 100% sure where is problem.