I also saw this recently, although on another provider. The solution in the article's case (as stated) is to not terminate multiple public IPs across one or mo

I also saw this recently, although on another provider. The solution in the article's case (as stated) is to not terminate multiple public IPs across one or more NLB which target the same instance. If you must target the same instance more than once, give that instance an IP address for each public IP.