Downloading Playlists

I have issues with downloading playlists, or some songs from a specific playlist. There’s some songs that simply get corrupted with time, in a way that songs play on fast forward or the sound is filled with distortion.

I feel like the option to re-download or force download of a specific songs should be part of the software. Or even having an option to force a whole playlist to check/verify that each songs are indeed downloaded.

I wouldn’t ask this if the feature of downloading missing songs would work correctly. I remember a feature which was fix download? I’ve no idea why I can’t use that option anymore.

Also, there’s an option to replace a song when it’s no more available in my country. It would be very nice to have that option always available. When I replace a song, and realize the recording is not exactly what I used to have,  and I want to be replacing the song without it to lose its position in the “Recently Added” playlist order.