The songs are covers of each other so the artist and album are different. I have multiple versions of other songs (studio and live version) with the same artist and they both show up. I wonder if it would be worth changing the tag on the MP3 file so the title is slightly different.
I have done a battery pull but I'll give it a shot again. Maybe I didn't leave it out long enough. I'll also check the card for .dat files.
Thanks for the help!