Do you mean the ebook.FMT files are in the library, but the book records claim you have no attached ebook files?
Check Book Details ==> Path ==> Click to open (click this

)
Are the missing files there?
What is the output of Library Maintenance ==> Check library
Does it list extra files? If so, where.
"No luck" doesn't tell us much -- did you get errors during the Restore?
(Indicates duplicate copies of the ebook record, one of which is maybe getting skipped but has your files???)