I just noticed a big difference in 2026 for 3D cad teaching a plane. If you select a 3d surface to create a plane and say its 1" x 1" square with origin at the corner. The Center Point will be X .500 Y .500. Now if you change the Length and width to 2" x 2" it used to offset the plane and you would have to adjust the center point to X 1.00" Y 1.00" to center the plane. Now in 2026 it seems to retain the original cad surfaces size for  the X Y location so you cant just divide the size by 2 to figure out you new planes size. It seems like bug because you newly created sizes center point is not the real center point from you origin.