I've updated to 6.90RC1 and now my downloaded files are not being sorted into folder named after the NZB file name. All was okay prior to the update.
I'm using these filters
G:\NB-Downloads\$(FILENAME)\
G:\NB-Downloads\$(NZBFILE)\
G:\NB-Downloads\$(FILENAME)\
Sometimes a new folder is created but only contains a copy of the NZB.
I'm not downloading a lot, but I'm ending up with a messy download folder.
I have used NZBs from more than one source, so I don't believe they are the problem.