So I have been trying to calibrate my camera for a while now and have been running in to issues - one of which being the error CS16 which says “The validation ending request failed. Please try to recalibrate again”. I will attach an image of the ending screen as well. I am not sure why it is happening.

Make sure the camera is well mounted on the flange of the robot. If the camera is not mounted flat on the flange you will not be able to calibrate.

If the robot is not well calibrated it is not possible to calibrate the camera.
If you recently changed a joint or lost the calibration files of the robot by installing a new robot image, the robot is not calibrated and you cannot calibrate the camera.

If you are still facing problem please contact our support team: support@robotiq.com.