I am also having problems with auto relisting not working. I have several items as 7 day auctions with an auto relist profile. When the items end they do NOT relist and I have to manually go in and re-schedule the postings.
Oddly enough I did have ONE item that did relist. I have checked my "Closed" folder and do not see any items there that end without selling. Furthermore, there are some recent sales that do not show up in the closed folder either.