my new tape tracks are MIA

just got the op 1. i backed up about 5 mins of tape tracks to my comp, and factory reset. i made some new stuff and wanted to back that up to comp, but only the first set of tracks (that i first recorded when i got it) are the only ones that are on the op-1, not the new tracks i just recorded, even though the first set of track is not on the op-1 tape mode. i don’t know what to do, any advice?