Failed calibrations

I am trying to run a flow calibration for a new Sunlu Gold filament.
I have done 3 times and every single time, be it in Bambu Studio or OrcaSlicer, I always get an error message at the end, stating that the calibration went only partway through and so the results were dropped. However the test prints out perfectly.
Any ideas what could cause this issue?

Both transparent and shiny (metallic) filaments are known to be a challenge for the LIDAR. Switching off all lighting during calibration may help a bit, but not neccessarily lead to success. In that case, manual calibration should still be possible though.

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Oh,right…I had not thought about that! Indeed the printer said that inspection of the first layer was not available when I did a print afterwards with the same filament.