The original post was over 2 years ago. I just created a course yesterday and had no issues. I'll test today to see if I can replicate the error.
USA, so apparently it's a regional issue. I was able to create a course in St. Petersburg using the follow roads option.
OK, was looking at the original post, which said "follow roads" wasn't working.
Looks like we're waiting on a follow-up from Garmin-Matthew
Closing thread. Please follow link above to continue the discussion. Thanks.
https://support.garmin.com/en-US/?faq=n2UzfNkYOt3iAbXqgl03W7