Missing land at new coastline

Hi FS designers!I have redrawn an island in Ground2K4. The default was not in exactly the right place. But the problem is that after redrawing the island there is some missing land along my new coastline. My procedure has been as follows:1. Make a watermask around the island to cover the default island2. Make a new coastline choosing Poly with shore and LWM = Land /Witdh=64/Layer=323. Exclude the old coastline, roads etc with the "Exclude" function in Ground2K44. Then I tried p