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QGC GPS telemetry compared to UUV display on map

I am sending a single GPS lat/lon to the UUV via UDP:27000.
QGC is displaying the GPS telemetry Latitude and Longitude correctly
But the UUV icon is bouncing between the correct location and somewhere in the south east of USA.
I live in the NY area.

MRO is recording correct Lat/Lon and QGC is recording correct Lat/Lon but UUV is not displayed correctly.

Does anyone have an idea on how to locate this issue.
It is happening with both 3.X and 4.X versions of QGC

Thanks for any help,


I figured out the problem I was having.
This was occurring during lab testing of my code. I was booting up the UUV with gpsfake reading a log file from one part of the earth. Then, I changed the gpsfake log file, but the UUV was still running.
The autopilot appeared to be trying to make sense of the new lat/lon and didn’t know what to do.
I then realized that I had to reboot the UUV before sending it new lat/lon data. Which makes sense, but I could not see the forest for the trees.

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