Dumb question

Help, dunno what I’m doing wrong, I just grabbed this iPod classic 2nd hand cause my old nano can barely hold any battery, I sync normally with my MacBook using the options in Finder, however, for some reason on the classic doesn’t fully display any album even when is the same library 🫠😅

Help, dunno what I’m doing wrong, I just grabbed this iPod classic 2nd hand cause my old nano can barely hold any battery, I sync normally with my MacBook using the options in Finder, however, for some reason on the classic doesn’t fully display any album even when is the same library 🫠😅