Mistakes were made and I accidentally prefixed 10 episode 4 screenshot files with "Ep3" instead of "Ep4" (from "Ep3 sempai and assistant-2019-07-24-16h46m10s938.jpg" to "Ep3 sempai-2019-07-26-21h16m24s206.jpg"). Oops. I do not have file renaming permissions.