Measurement of chart with paper tint is not possible on FD9: "Sdk returns reliability 1024"

Error: "Sdk returns reliability 1024, which means the following errors: Some patch isn't monochromatic. Patch recognition failed! Recognized Number of patches: 315 ..."

This error appears if the contrast is not high enough. This is a limitation of the measurement device. It is not a GMG issue, but a measurement device restriction.