Track Map and Track Logs dont match


On 6/13 I had a IFR training flight from KPLR to KANB using N50TM. When reviewing the flight on flight aware, I noticed the flight track map initially showed more information than the track log had recorded. Now the track map intermittently alternates between a long version and short version. The track log has never shown all of the points on the longer track, but seems to consistent with the short version.

I realize this is an area of limited radar coverage. I am just wondering what causes the difference in the longer track map? If there is additional radar points, why dont they show up in the track log?




Just an FYI… I have saved both Track Map images if you need them for comparison purposes.