Unplayable protected songs (recently purchased on iTunes, half albums...)
Yesterday I noticed that some songs I'm sure I've played before on my Sonos have become greyed out and protected. These are all recent iTunes purchases, so shouldn't be affected by the pre-2009 DRM issue. Bizarrely, one album is half protected, half not. Is it a coincidence that I installed iOS8.4 yesterday and signed up to Apple Music free trial? Any suggestions (other than paying Apple more by signing up to iMatch?).
