I briefly thought that the issue was because my running apps listed Update as "restarting". I thought that was preventing auto-sleep and shutdown... as I noticed that once it was no longer listed as "restarting" and was just normally open, it shut down okay. But then it didn't.
It has even shut down at times while the music app is open, after it finishes playing. Except when it doesn't.
There doesn't seem to be any rhyme or reason involved. I shut down almost every app last night, but it still wouldn't sleep and shut down properly. Very frustrating!
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