A bookmark search re evaluate the pointers. When a bookmark's pointer cannot be resolved it will be deleted. There is high chance that pointers are not valid upon game relaunch. If the list is empty it probably means the pointers are all bad.FYI I noticed an issue with bookmarks, if you have exited the game, reload the game then go back into edizon se and do a bookmark search all bookmarks get deleted instead of it searching through them.
Check the status of the bookmark. Do you see access denied?