Have a strange issue when using the built in media upload:
After selecting multiple files, they get "crunched" and then are listed in the table. If I click "save all changes" immediately, the files get registered as children of the post, and subsequently a "Gallery" tab shows up. All good.
However! If I upload multiple files, and then edit a few (give them captions, etc) then hit "save all changes" the files get dumped into the DB without a parent -- and get lost in media never-never-land.