Route planning not working
I was unable to replicate this issue. No problems creating courses on the app. Sometimes, various regions will have mapping issues, so best to report this to your local Garmin Support team.
As far as importing courses, do you mean using the web interface?
I managed to import gpx through iPad.
Using the Garmin Connect iOS app or the web interface?
Importing a Third-Party Course into Garmin Connect | Garmin Connect App | Garmin Customer Support