That's not strange, its normal....
You can name the sound whatever you want, so either she has named it differently than the original name "ALLELUIA!", or somebody else named it "ALLELUIA!" and updated it on the database.
When you send the sound back to her, her Plus! will detect that she already has that sound and doesn't download it anymore from the online database but plays it directly from her local hard disk where it is stored. And thus she doesn't get the (updated) name from the database.
/ 
