Change the season to summer or no season and see what you have. The runway in the ADE file was definitely set to the wrong elevation, didn't match the surrounding water elevation, causing the water chasm problem in the screenshot. Makes no difference P3D or FSX.
Doug, Pilot's 10 Mesh is NOT a BWEP requirement. Just ORBX Global Base and ORBX Global Vector. I don't have Pilot's and never have a problem.
Steve