Hi SolidWorks users,

I'm attempting to knit some surfaces together en route to creating a mold for a design team vehicle, as shown below:

When I originally knit these surfaces together, I had no errors. However, when I re-enter the same exact file in which nothing has been changed, and I click this same "Surface Knit" feature in the Design Tree, when I click OK, I get the error, "the feature could not be created because it would produce self-intersecting geometry."

The reason I am trying to re-do this feature is because I want to change the angle of the two thin pieces at the ends to be flush with the rest of the plane. But even without changing anything, the surfaces will not knit together again. I have tried re-doing the flat surfaces several ways and each of them lead to the same error when knitting.

Is my file corrupt? Am I missing something? I deleted all my temp files and have restarted SolidWorks several times to no success.