[IPod 5th Generation] Two of my offline playlists are showing no songs.

[GoldenCharizard]

Hi (very new to this),

I noticed this during my afternoon jog. My ipod doesn't have cellular and I am forced to constantly use offline mode. So As I began my jog, I clicked one of my playlists, and it showed all of the songs on it. As I switched to another to which it's before screen showed '35 songs'. But when I actually clicked on this playlist it shows the slots where the songs would go, but in those slots its just black space. The shuffle button is also present, but when I press it nothing happens. Please help me fix this issue!

[MattSuda]

Most problems are solved by reinstalling the app.

Delete the app and then reinstall it. 

Then try to redownload the playlist for offline use (as well as readjust your preferred app settings)