Terminated Instance not Removed from List

Hi, According to: https://awscli.amazonaws.com/v2/documentation/api/latest/reference/ec2/terminate-instances.html

Terminated instances remain visible after termination (for approximately one hour).

So I would wait for a few days and if still there, then ask support.

To avoid being charged even for terminated ec2, review this https://repost.aws/knowledge-center/ec2-billing-terminated

Hope it helps ;)