Using Navigator Free 6.0.205, I recorded several GPX files while hiking during the past week. When I viewed the files in Navigator Free or on the OSM website, the files appear to be either are corrupt or were not recorded properly. Instead of following a winding hiking trail, the trace shows a series of straight lines with many locations missing even though I passed by them.
GPX files and screenshots are located here.
GPX files recorded on 16-06 and 31-07 display routes properly.