Musocity,
By the way, if you’d like to disable the wave being generated, as a workaround until the patch comes, you can achieve this by disabling the generation of the master track audio

To do this :
. Press the "+" button on the Style Mix track and select "Disable". (That disable the master.wav file and also the individual track wav files that get generated as well

Wheb you make this setting you should no longer receive unwanted wav files if you are using reaper and only want the instructions.

Have Fun!
Peter Gannon
PG Music Inc.