I’ve spent the better part of this week trying to diagnose exactly how to prevent this issue from happening and have been unable to find answers. I have a model in which a beam must be trimmed in order to be matched with a corresponding length of beam. Unfortunately, when trimming this beam, the surfaces “jerk” into a different shape; the curvature changes and seems irrational. I’m unsure what could be causing this. Any help would be much appreciated!
Sections through the original and trimmed surface attached: