account not syncing on different devices

[Leo2016]

I'm having this issue where all the songs I play, add to my music, create playlists (basically any activity of any sort) I play on computer A are not appearing in my profile on computer B - it's almost as if I am logged into two separate accounts but when I go to log out of computer B, it is the same exact credentials I would use on computer A. This is related not to the web player, but the app on Mac. 

Anyone else having this issue?

[KrystalKavney]

I am having the same issue! I just got a new device and none of the playlists I have created in the past couple of years are there. Help!