I have this song (I have the other one too, but not from PG Music).
The song is 6 choruses of 32 bars.
I tried setting the Always Loop to ON and playing from chorus 6 and the song ends and starts again correctly here, including the count-in.

Did you adjust the number of choruses at any time?
If so, you would have been asked to adjust the Melody Track. I did not try this, and it wasn't mentioned in your post.

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