Drive lenghts doesnt show on Gamin Golf application. For some reason it limits teeboxes out, so you cant see lenght of your Drive. That is very common problem and usually it happens at 50% of courses holes. It works fine with computer. ciq.forums.garmin.com/.../1354789.jpg
How many courses have you seen this issue on? If you are only seeing it on one course then we need to report it to here so that we can update the course and fix the issue that way.