I've recently been practicing to take the CSWP Exam, and many of the examples I've been seeing involve using a revolved cut up to a surface. When I try to do this myself I always get an error "Failed to trim the result with the selected face or vertex" however it seems to work fine when I revolve cut up to a vertex, but it doesn't give me the result I'm looking for. Would anyone happen to know of a way to make this work? The attached images are examples of what I'm experiencing.