Hello, This is usually caused by imported dwg files. To delete objects far from the origin: -Enter layer settings, click 'Open All' and 'Resolve All' buttons. Exit the dialog by saying OK. - Check the geometry. -Select any line that gives the warning by clicking with the left mouse button. -Click the button to select objects with the same results on the relevant floor. -Close the geometry control window and delete it by pressing the 'Delete' key on the keyboard. Repeat this process on all floors that have been warned. Good work.