Glad the problem was resolved. Like with all things computer, probably something really small.
Reading the scanner to obtain and then populate Sentinel with Favorites Lists can be helpful. During the "read" process, Sentinel is looking to see if the files are already on the computer, where they are expected. If so you are asked to copy them with new names, over-write or leave things alone. This would tell you that they files can be found. If you don't see the message, then Sentinel cannot locate those on the computer. That's typical of the file pointer not pointing in the proper location.
On the other hand, reading from the scanner might not "all it can be". By that I mean there are reasons why a Favorites List may be on the computer somewhere, but were not written to the scanner during the upload. For example in the profile, Download was not On.