Power BI Parameter to dynamically find the previous row value in Power BI Table 

Hi, thanks for the video, why in the 4th escenario, in the date 9/01 gives as previous 2 row the date 7/01 when the previous is 6/07? In deed 7/01 appears two times in the previous column, one for 9/01 and one for 10/01. Thanks!