Trying to learn mid-song style changes.
I start with a simple chunking guitar style. At 5th measure I use F5 and change to a new (bluegrass) style/instruments.
During playback I hear the first chunking guitar for the first 4 bars. So far so good.
Starting at 5th measure I hear the new bluegrass style I selected.
BUT the chunking guitar sound from the first style CONTINUES mixed in with the bluegrass style/instruments.
How do I make the chunking guitar/style stop at measure 5 so I just hear the bluegrass ?
I've watched the instructional video on mid-song style changes to no avail.

Newbie Bob