Whoa, that's awesome, thanks, I didn't know that was out there for routeCourse.
Just curious, do we have to use routeCourse to import courses to the watch? Doesnt Garmin Connect now support this feature as well?Nope. Now that Garmin overhauled the route creator, you can import either GPX or TCX. Really nice job Garmin has done.
I remember a discussion a few months ago about the routeCourse-loaded courses showing only cross hatching on the preview screen on the Fenix 5x. You have probably been told numerous times by other people already, but just in case: This issue has completely gone away - it may have been the Fenix fw 6.0 that fixed it, or it may have been something you did, I don't know. But all in all, it just works now :)