diff --git a/src/app/project/game-model/gamesystems/productSystemGenerator/ProductGamesystemGenerator.ts b/src/app/project/game-model/gamesystems/productSystemGenerator/ProductGamesystemGenerator.ts
index a5a16cf..7538949 100644
--- a/src/app/project/game-model/gamesystems/productSystemGenerator/ProductGamesystemGenerator.ts
+++ b/src/app/project/game-model/gamesystems/productSystemGenerator/ProductGamesystemGenerator.ts
@@ -18,8 +18,10 @@ export class ProductGamesystemGenerator extends AbstractProductGamesystemGenerat
     transition.scriptAccountActions = [... usedTransition.scriptAccountActions];
     transition.scriptAccountConditions = [... usedTransition.scriptAccountConditions];
 
-    if(generatedTransitions.find(generatedTransition => generatedTransition.equalsTransition(transition)) == undefined) {
+    if(generatedTransitions.find(generatedTransition => generatedTransition.startingState.equals(startingState) && generatedTransition.endingState.equals(endingState)) == undefined) {
       generatedTransitions.push(transition)
+    } else {
+      console.log(transition)
     }
   }
 
@@ -32,10 +34,8 @@ export class ProductGamesystemGenerator extends AbstractProductGamesystemGenerat
       transition.scriptAccountActions = this.generateCombinedActions(leftTransition.scriptAccountActions, rightTransition.scriptAccountActions);
       transition.scriptAccountConditions = this.generateCombinedConditions(leftTransition.scriptAccountConditions, rightTransition.scriptAccountConditions);
 
-      return transition;
+      generatedTransitions.push(transition)
     }
-
-    return undefined;
   }
 
   protected generateBinaryProductState(leftState: State<any>, rightState: State<any>, generatedStates: ProductState[]): ProductState | undefined {