I've just noticed that when I overwrite previous save with the new one, screenshot (preview picture) of save file will not change and you will still se preview picture from previous save.
Everything else works fine, it's just confusing when you want to find your save file by picture.
Happens in 100% of cases.
PS4, FW 3.11
Fallout 4 v. 1.01 (day-one update), EU version