Looking for guidance ... On current leg of route, the mark range and SOG should show about 10 hours, but I'm getting a much larger value for time to mark. I pull boat data from N2K network and Actisense NGT-1.

[img]https://1drv.ms/i/s!ArzWxQREyJ_4haJyZR5oLE6_tb1m4A?e=Nzu5zU[/img]

The issue is similar regardless of which GPS source I select in the Actisense settings (either the AIS or MFD). Screenshot of number boxes attached, see yellow ones. 

The active mark name is unique (though I suspect there are underlying GUIDs even if name has redundancy). 

What do I need to change or reconfigure.