I just realized that the CMS dynamic list sorting filter is case sensitive, meaning that when I do have a shop list with names like "Amazon" "Bol.de" "Viking" and "titus" - titus will not be in its place between B and V but is sorted at the end of the list.
Incorrect (displayed within my site)
Is this a bug?
You can see it live here on this screenshot. I changed "posterjack" to "Posterjack" and its sorted in a correct way.