When opening the Music node, I get an empty screen and the error 'unable to open Music' in the status bar. The same happens for my recently added smart playlist. The playlists do open normally.
could you check the error log (help/ support/ view error log) in case there is an error around the time this happened
Here are two logs, the first one is about the exact situation I describe in the above quote, the second a different but very much related error from trying to open the library in another way. I just include it, who knows it might help. The bug is persistent, I have failed to open Music node of the library so far. Opening it again (from the file menu) did not resolve anything either. But remember, I do have and can play all my playlists from that library.
04-Nov-15 17:01:51 - 6.3.9600.0 - 3.0.5785.39316 - System.NullReferenceException: Object reference not set to an instance of an object.
at #=qj_x3wUd67tpFnET6lnFgT5DomYSmW8mWH_dxtbVh0rN4ifvsgsRzjnhuYwgcLYFs.#=q0zzr3qCdefJFPoRhnOFW$ZGOGhG7SkSIZGGA5IYPA3s=(#=quBTWLQEpz_JUjVbEDhFEctQwOG2OitHuzwxFzOvQKk0= #=qP3SbSd7G3HQ77ainfcvIng==, #=quBTWLQEpz_JUjVbEDhFEctQwOG2OitHuzwxFzOvQKk0= #=qjvAU6XY$2mrhj6gOcD962Q==, TagCode #=qIPg8lEDP8XmIwpEGMZcNXQ==, SortOrder #=q6tizjFjzWwiWeysugRp21Q==)
at #=qwUdaIdcHPbu6oDVCGDuj44HXkZODpn88BrYSx5k4zvY=.#=qBjbEyLPVl$RdDtrfHeQALggksZa8yujcSipAmLFdxew=.#=q2i4AgOUYUkBsao6CQDafI7YruQqnVHd1XwAnM5tXS1c=.Compare(#=quBTWLQEpz_JUjVbEDhFEctQwOG2OitHuzwxFzOvQKk0= #=qVwXbuui_pdTMQ6oJc09PNg==, #=quBTWLQEpz_JUjVbEDhFEctQwOG2OitHuzwxFzOvQKk0= #=qGzjZBUp1QrrXku3D3KppiA==)
at #=qkSIgmpMrTuWWiTYjt20DF5Lss86nO633huSIs5qQKZU=.#=qmD$8B48LBPz7XerrYrOieA==[T](T[] #=q8$azxJZGNRRRLdnwfkGB$w==, IComparer`1 #=qqBMZsNQYKMisfBJ5E0upAw==)
at #=qwUdaIdcHPbu6oDVCGDuj44HXkZODpn88BrYSx5k4zvY=.#=qBjbEyLPVl$RdDtrfHeQALggksZa8yujcSipAmLFdxew=.#=q21EH_ZBA8CoHnmlcY9s8Yw==()
at MusicBee.MusicBeeMain.#=qh7syZqXCHQPw_1A45QqqmWs00YB$5bCiqgE1nMEoXBY=.#=qfdx4Z2jUoubE_Nqj1UE0jg==()
at MusicBee.MusicBeeMain.#=qDYUBMODGu3ovqH25ZeChka3HQzZO8Wp$uYAn3PT7$uE=._Lambda$__1()
04-Nov-15 17:01:26 - 6.3.9600.0 - 3.0.5785.39316 - System.NullReferenceException: Object reference not set to an instance of an object.
at #=qxvnBjT$aLqmRRUig_COHyS7YseteRw5ALAacg4hcbpHEG6Y66W$vcw_NPB59pxF2.#=qWBAucRuSLtmIEQMpNfpJ5Q==(IList`1 #=qId727vgLiPzgjFEB2sf7GQ==, Int32 #=q76BYE8YEMcZNq9rYWHU$dg==)
at #=qxvnBjT$aLqmRRUig_COHyS7YseteRw5ALAacg4hcbpHEG6Y66W$vcw_NPB59pxF2..ctor(List`1 #=qjNPJFS4TWp9c_uOYN2BriQ==, Boolean #=qyS5VZ0qOTzcx71qaf30Obg==, #=qnUnKDwKlBo5UNcHnjbfVf0f3DGd5TLu7nZ$DoYr_7mc= #=qKuLHkZW1u_pd36JhOozdww==, Double #=q_NseBcpH33z7B_5QkarjsQ==, #=qIDoVH$fV$Xn2wwo0AioJI5o8adLO4KkYGEzpeGdNBLM= #=qw3bOLTrkcCwDH305$0FMVg==, #=q$LfFyjou25JlTCP2$T8iituPy5RUUzyj7DYkThUKir0= #=qmtPo$NE9G1eduxf5GY384A==)
at MusicBee.Media.PlayManager.#=q24rN42XtMpa8ElqZwfluFuTuvheHXP0E_M0fSTL5pMk=(List`1 #=qPmXi44AtTg0jhn0pYVyWcw==, #=quBTWLQEpz_JUjVbEDhFEctQwOG2OitHuzwxFzOvQKk0= #=qlLgSt0u3l3YK4$IAlAGZ0A==, #=qIDoVH$fV$Xn2wwo0AioJI5o8adLO4KkYGEzpeGdNBLM= #=q1gZMlAM5NUoBL88RnH5Ypw==, #=qDuvXZ3shsR4RLH_xkDyUf7Yv1S4haIn7Djn6RlcfU3A= #=qe8q2GpxMrzxZNxC1ZBZ$qg==)
at MusicBee.Media.PlayManager.#=qQubIA_H82pWbbOuQ8vwN$RQuRVP_1o1LesyzallPL2U=(#=q227F_UPm1pDHBE5q3XT2SxoMh_a2fvWacApvXNKsb5A= #=qE_wQD1mQzoNg9uWAqmQ8jQ==, #=qIDoVH$fV$Xn2wwo0AioJI5o8adLO4KkYGEzpeGdNBLM= #=qm$NnfS7x_TpPKs_u5kw1xw==)
at MusicBee.MusicBeeMain.#=qFNg2I$Mr5yfVqDV06712Pw==.#=qGTm3g3F_gqVxZ3kI11meg0Ml3QqI_9ZanTEMKAa8sXc=(#=q9OCAT_wceHX7Gm2oqBUUDzpF5w3v1tSrc65Z6f1xAuWgqL9nmaXZOjDUZvHowhMI #=qBOHAD3H3KQXxIOAwVUMqXA==)
at #=qyw8KZrIMIPOtc4BYKrLco7fdcXN9vPhAnZcm6qc3CK4=.OnMouseDoubleClick(MouseEventArgs #=q1CRxLM$dVwNhd_vjGt0ldg==)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at #=qGOQJqWbtwGLRdGoE_V2NYyHaVSOcgPgDiwI1F9CStSk=.WndProc(Message& #=qsoUNSDT3CzvT1$QM91ChnA==)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)