probably what happened to me as well, i remember a large part of my itunes being gone. I switched to downloading and managing my library manually on musicbee and haven't stopped, even after switching to linux i still run musicbee through wine.

Given the horrible impact of spotify on the industry and the shady shit going on, i don't regret it, as much as i feel like a weird hermit sometimes for not using spotify or any other streaming service. Nobody can take my music away, and I can use it however i want.