diff --git a/src/components/InteractiveObjects/PairMatchingGame/PairMatchingGame.js b/src/components/InteractiveObjects/PairMatchingGame/PairMatchingGame.js
index 7754a43..30378b3 100644
--- a/src/components/InteractiveObjects/PairMatchingGame/PairMatchingGame.js
+++ b/src/components/InteractiveObjects/PairMatchingGame/PairMatchingGame.js
@@ -72,7 +72,7 @@ class PairMatchingGame extends EventManager {
                 container.add(m)
             }
 
-            let actionDef = {material:{emissiveIntensity:k=>(1+Math.sin((k*2+1.5)*Math.PI))*4 }};
+            let actionDef = {material:{emissiveIntensity:k=>Math.max(0, Math.sin((k * 2 + 1.5) * Math.PI)) * 1 }};
 
             var clickFn = (i) => {
                 this.dispatchEvent({type:'interaction'});
@@ -96,6 +96,7 @@ class PairMatchingGame extends EventManager {
                     aq.add({ o: oc, a: actionDef, t: 1 });
                     clicked = null;
                 }else{
+                    aq.clear(oc, true);
                     aq.add({ o: clicked, a: actionDef, t: 1, r: true })
                 }
             };