Hello. In 2017-08-19.zip you have folder S2B_MSIL1C_20170804T081559_N0205_R121_T34JEP_20170804T084631.SAFE which is seems to be image from the 2017-08-04. Is it just a wrong name of folder or wrong files?
Checked filenames inside and it also has marking of 2017-08-04. So seems we have no images from 2017-08-19.
By the way, 2017-08-19-JFP.zip also has image files with the 2017-08-04 date.
Alright, it looks like the files are just mixed up a bit. 07-15 has 08-19 images, 08-04 has 07-15 images and 08-19 has 08-04 images. This applies only to non-JFP archives.