Tag History last timestamp in power table not matching with tag's last update timestamp

Hello All,

I have a enabled a historian for a tag with below settings


The tag’s last update timestamp is below

Tag value last update timestamp

This above timestamp is not matching with the history queried from Power table Tag history binding. The last row timestamp is updating continuously with the current system timestamp. Why is so? Whether the tag history setting and power table query settings are correct? please clarify

Power Table History last timestamp