To get Bracketeer to work, it must be specifically installed or copied into an applications folder, not just any folder.
If you put it in another folder, it lets you import one graphic, then it freezes and returns an effuse error upon trying to add the 2nd grahic.
Recommendation: Add this, as a warning, in instruction manual, or, fix the software so it can be installed into any folder. Get a new beta tester, any good beta tester would have caught that on the first day.