For dates 20190518 and 20190607, when specifying an area of interest on scihub, I get 2 different L2A and 2 L1C products, which have some overlap and seem to be coming from the same granule. The product and granule ids are the same but with different time stamps eg:
In the overlapping area, where my region of interest is located, i get slightly different values for the same pixel between the 2 different products. Is there a reason this is happening? and should i consider one or the other as the correct product? the latest one perhaps?