I just spent about 2 hours last night trying to get some local files onto my itunes, then onto spotify, then onto my phone. This was all unnecessarily complicated, but I got the job done. Now the problem that I can't seem to fix myself (and yes I have searched around for solutions already) is that the album artwork that I added into itunes before I added them to spotify, shows up on the mac, but not on the iPhone app.
Having the SAME exact problem. Last night I downloaded a little bit over 100 songs, edited all tags, track info, and album artwork in iTunes and MP3 Tag. I then transferred the files over to Spotify, Everything worked fine on my PC, but whenever I play my downloaded local files on my iPhone, the artwork is gone. All the track info and tags stayed consistent though.
make sure the artwork is 800x800 pixels
Make sure the artwork is 800x800 pixels
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