Try this
[sgpx gpx=”/wp-content/uploads/gpx/< gpx file name >” ngimages=<id>,<id>,<id>,<id>,<id>,<id>—etc]
[sgpx gpx=”/wp-content/uploads/gpx/< gpx file name >” nggalleries=<id>] =blank page, error
[sgpx gpx=”/wp-content/uploads/gpx/< gpx file name >” nggallery=<id>] = track and map is ok but no thumbnail pictures on map
Solution
[sgpx gpx=”/wp-content/uploads/gpx/< gpx file name >” ngimages=<id>,<id>,<id>,<id>,<id>,<id>—etc]
For me the same problem but I found a temporary solution.
You must manually enter the id images.
Example; … ngimages = 2032,2033,2034,…
