使用WorldTerrain搭建的基础地球，使用Cartographic Polygon裁掉了一块区域，效果是正确的，但是一打开EnableWaterMask裁切的区域就不正确了，希望得到帮助
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Hi @wszty,
Unfortunately I’m not able to reproduce this behavior. Could you please include step-by-step instructions for creating this example? Once we can confirm the behavior on our end, we’ll be better equipped to fix it. 
Glad to hear that you found the reason for the weird behavior, @wszty! Let us know if anything else comes up