Running Windows 10, build 1607.
I can play a song with Groove Music, close the app, reopen it, song resumes after I press Play.
I can play a song with Groove Music, shut down the computer, turn it back on, reopen Groove Music, and the song resumes after I press Play.
But when I suspend the computer, and it turns back on, Groove Music shows the song and has the correct position, but pressing Play shows a loading icon on the album image in the bottom left, and then the song starts playing from the beginning, not where I was.
Is this a bug that was fixed in a later update? I can't do updates right now so I hope it is just a simple fix.
BTW these are MP3 files.