I used the offline installer to upgrade my main polling engine to the 2020.2.6 release from Aug 24, 2021, or HF1. Normally I can run it on my two APEs without problem. This time I get messages that the additional APEs are already at the latest version.
If I go to the automated upgrade process it says "Upgrade of your scalability engines is required. Please proceed here to complete the upgrade process."

After clicking on the link it says the additional polling engines are already Up-to-date.

What do I need to do to either upgrade the APEs or make the messages consistent?