In my case, i use the voice tracks for jingles that end at the end of the intro.
As they get inserted by the playlist generator, the songs and the voice track jingles are random.
So it is likely gonna happen that the voice track is too long for the songs intro.
And that would lead to weird silence between the songs.
Here are some audio examples that show my problem: https://we.tl/t-rEl8pZQ397