How Do You Handle a Discrepancy between NMAP Results?

Problem scenario
From two different servers the nmap results show different ports are open. What is the likely cause of this problem?

Is the font size too small? The IP address you are testing is not what you think it is. Look at it carefully because human error can be a factor. Private IP addresses in private networks may be duplicated and pertain to entirely different servers. The IP address may belong to a different server from the one you think you are testing. Use ip addr show | grep x.x.x.x where x.x.x.x is the IP address that you are testing. Try also copying and pasting it between the terminals.

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