Don't know if this has been reported earlier... But it looks like some sort of a buggy behavior and - evry time I find out something like this I prefer to share it with LV-community. So, LV6.1 FDS(French), W2K and Scan String for Tokens function. If all "operators" on input starts with a "%%" than this function simly do not work (with empty separators array). Adding any non-"%%"-started value in operators array solve the problem. There is an example to illustate what I mean...
(Heh.... Hope this is already fixed in LV7.0, but...)