Hi @yanyiphei sounds good, that’s completely understandable. Based on our tests, the algorithm is working as expected. Additionally, just yesterday a user mentioned on the forum here that our hyperband example from the repository worked fine. I will mark this ticket as closed for now but will keep an eye out in case there are any other similar reports. However, if you have time to try the recommendations mentioned above, we will be more than happy to continue investigating. Thank you!