Where do you have your RealTracks and Drums ?
are you using wma or wav ? wav files come with the Audiophile Edition.
If you right click on a media item > Source Properties it will tell you where the file is it's looking for.
Also Action > Peaks: Build any missing peaks
You can set in Preferences (Ctrl+P)
![[Linked Image - Only viewable when logged in]](https://www.pgmusic.com/forums/ubbthreads.php?ubb=download&Number=27411&filename=Reaper-Media-Offline2.png)