Which version do you have xpress, standard, Pro or Ultimate? The Proposal needs an update to all versions to be able to back it up. Ultimate latest version 18.104.22.168 can do Adventureland but xpress, standard and Pro latest version 22.214.171.124 is not able to do both movies
If you are using standard or Pro try this for both movies but not too sure if it will work for you or not. The Proposal worked for me how I described below but not too sure about Adventureland.
For The Proposal you need to uncheck title sets 1, 2, 3, 4, 6, 7, 8, 9, 10 and 11. Leave the rest checked as I got a perfect FullDVD back up this way for it.
For Adventureland you can try unchecking title sets 1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 14 and 15. Leave the rest checked but not too sure if this works or not as it has been awhile since have done this movie.