Why the amazon personalize -> getRecomendations always return the same items ID?

Hi Marcos,

To get different item IDs from Amazon Personalize's getRecommendations, especially using the aws-user-personalization recipe, consider:

• Increasing the diversity of user-item interaction data fed into the model.
• Adjusting exploration settings to introduce new or less popular items.
• Using filters to exclude items already interacted with or seen by the user.
• Regularly updating the model with new data to reflect changing preferences.
• Experimenting with the PersonalizeRanking API for dynamic re-ranking based on current interactions.

These steps can help balance between leveraging known preferences and exploring new recommendations.