Importing gpx with multiple waypoints

Help me understand how to import one gpx file that contains multiple waypoints.  I'm able to import this file into Garmin Basecamp fine, and even tried exporting with garmin basecamp to make sure the format of the file meets garmin's expectations.  I'm still unable to import this file. I don't even get an error message.

Please help.  I will be using my new inReach for geocaching in some remote areas and wanted to make sure that I'd have a way to communicate for help in the event I get stuck.