SpaceClaim unable to add missing surface
I have several surfaces that come together to create a single solid body, but when I import the igs I see one patch is missing. The goal is to get SpaceClaim to create the missing surface than turn the whole thing into one solid object with no holes and no cavities.
I have tried Fill tool and Gaps tool and Missing Faces tool. One of the images below shows the error when I try to create the missing face by selecting the edges that would be its boundary. The tool says no missing faces, but there is a missing face.
How should I get that missing face and then convert to solid?