I have a simple building model and all the corners look good except for one vertex "Make First" which causes an error and I don't know how to solve it. All the corners cut perfectly except for this one, is there a solution. And the second thing off topic, I noticed that after switching to the latest version of Railclone 6, the Quick Mesh option no longer works, you can even try it on my model that I sent, but the default option is now Adaptative.