Why has my sperm result/score gone down when it previously showed at a normal level?

The Medical Team reviews all videos and manually checks that the tracking of the algorithm correctly identifies the paths of the motile cells. When this is not the case, they adjust the end result for a fully verified result. This is exactly the same process as is done in fertility clinics and andrology labs with computer-assisted semen analysis systems. I hope that explains the process and why the final verified result is always highly reliable.