So i am working on a project, where i created a shape based on an image, but when i extrude it certain areas just won´t extrude right. As you see in the screenshot there are no "walls" at some places. Why is that? I guess that i used a couple techniques in the process to create vertecies, that apparently don´t work well together.On the other hand i don´t see why this should be a thing. Is there a way to assimilate the condition of the whole mesh so it extrudes normaly?