It should list a lot of files (when you say "few" that usually means 3-4-5, my system finds over 60 which may be "few" to you hehe), make sure you search hidden and system folders as well. And search for .jpg as well as .jpeg, both are the same file type.
Is this the same issue you are trying to work on when you have an encrypted folder that has no files in? If so, you won't find those files using a search.