Table styles don't work

Dear all, after a whole day searching the net, I ask you, what do I do wrong?

I want to automate my workflow, have a lot of books coming up with tables in them. So I made a tablestyle with embedded in it, the cellstyles, the paragraph styles in the cell styles etc. It works but also it doesnt work. What happens is that I can change the tables to said tablestyle but... the cellstyles are not active. So if I want to change something in the cell styles, it doesnt change in the table style.

I made a cell style "header row" (and a body row and a footer row):

I made a table style with the cell styles in it:

But when I use this table style on the tables in my manuscript, the table looks good, but has no cell styles. On the picture I selected the body-rows but they are NONE cell style.

HELP!