Yes, I know what the problem is.
I have removed the UI.messagebox window and display the results in VCB. Now it works more efficiently. You do not have to close the window after each measurement. Only with PAN or ORBIT the window is cleared.
Sketchup;;set_status_text(("#{dims.sort.reverse[0].to_l} x #{dims.sort.reverse[1].to_l} x #{dims.sort.reverse[2].to_l}"), SB_VCB_VALUE)
[image: hvX4_Dimension2.jpg]
Robert