@XCaliber Thanks for clarifying that with me.
It sounds like that track may have been given a Thumbs Up on more than one of your stations. I believe this is the case as you mentioned that it plays again highlighted when selecting a different set of stations to shuffle.
One thing to remember is that thumb ratings are station specific - giving a thumbs up to a song on one station will only apply to that specific station.
So if that same track plays again on a different station, the thumbs up rating won't be highlighted.
Additionally, if a different version of the same song plays, it will not have the thumb rating applied to it.
When listening to Shuffle, you can view which station a particular song is from by scrolling to the bottom of the Now Playing screen. A banner will appear at the top of the window. It should say "[Station_Name] Radio," and then the name of the track.
Check out my post here for a picture of where that can be located.
Hope this helps!
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