After many, many tests, I found the origin of the problem:
If it is unmarked "add values only if the field is blank", it loads indeed down the pictures, but they do not write the picture-name to people-table in the database. This also occurs if I install everything from scratch.
Please fix this. I need the option "add values only if the field is blank" unmarked.
It may appear to work great, but it does not. It shows actor pictures if they are already in your database, but if it is downloading an actor that is NOT in your database, the picture doesn't show. I have to update every NEW actor individually to get it to show the picture.