In some 3D items I’ve created, such as a box, I will sometimes want to make it smaller. So I enter “Edit Group” mode, select just the right side of a box, and then use the move tool to slide the right edge toward the left. Sometimes when I do this, there is a small plus sign near where the right side used to be. When the plus sign is there and I close the group, the shell of the selected solid still extends as far to the right as it did to encapsulate the plus sign.
I have not been able to delete the plus sign for those occurrences. I’ve concluded that the plus sign indicates something and is not actually part of the item, but searches online have failed to describe my situation. I’d appreciate anyone’s tip that could give me some insight into what has become a very frustrating problem. TIA!