Ok so i know now the water is just not installing from rex 3 as this is meant to be color me beautiful and looks nothing like it this is with hdr off.
this is my rex 3 settings.
Yup it is definately only installing rex 4 water textures its weird as the sky textures from rex 3 install.
I think i know what the problem is i installed rex4 water first and can't seem to overwrite it.