diff --git a/src/sprites/rendered-target.js b/src/sprites/rendered-target.js
index adf945739..e062df53f 100644
--- a/src/sprites/rendered-target.js
+++ b/src/sprites/rendered-target.js
@@ -706,9 +706,10 @@ RenderedTarget.prototype.onGreenFlag = function () {
 
 /**
  * Called when the project receives a "stop all"
- * Stop all sounds
+ * Stop all sounds and clear graphic effects.
  */
 RenderedTarget.prototype.onStopAll = function () {
+    this.clearEffects();
     if (this.audioPlayer) {
         this.audioPlayer.stopAllSounds();
         this.audioPlayer.clearEffects();