Isocurve visible check box will not engage

The isocurve’s check box is not disengaging.

To be of any help, we’ll need some specifics and an example file.

In the Properties fold on the bottom right, the Isocurve Density section, the “Show surface isocurve” checkbox is not working. The checkbox does not allow me to uncheck the box. I can however go to the Options folder and go the long way as shown on figure 3.
Let me know if you need more information.




Best regards,

John F. Figueroa