When the new ui came out I was able to click the arrow next to the first track and it would start playing that track and add the rest to the queue.
Last several days when I click the first track it does not begin with the first one. If I click to play next track it randomly plays another in the album.
What you describe is exactly what might be expected if Shuffle were toggled on. Go to the Queue screen (music stave icon in the footer) and check the Shuffle icon to the right of the large dynamic Play display. If it’s blue then toggle it off.