I understand you received a message stating you only have one instance yet your other blade show that you have three instances.
I verified that what you see in the properties tab of the overview blade is the true source of information. In this case, your instance count is listed at 3, which is what you have configured.
What is being displayed in the diagnose and solve blade is a UI error and incorrect. As a result, we have added this to our list of items to share with the product group when we meet with them in a week. This will help raise awareness on this matter.
If you have further questions or concerns, please reply here so we can assist you further.