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Route using the wrong cached directions.

Interesting bug today. I loaded a route to climb Les Deux Alpes in France and it gave me directions for another of my routes in South West London in the UK. I wondered why I was constantly being directed to my local park. Had to remove the cached version and recalculate once I realised. Not seen this before.

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L.Rouge over 1 year ago in reply to bikepc01 +7

bikepc01 said:
Remains an intriguing issue though because not everyone sees those ghosts

There are more than a dozen 1040 Forum topics in the last 10 months that report different aspects of the "ghost course…
aweatherall over 2 years ago in reply to jgforrest +3

You can remove the cached route through the UI on the Edge by

Navigation -> Courses -> Course name -> 3 dot menu -> Route Calculation

You can also remove it through the backdoor by deleting…
mweijs over 2 years ago in reply to aweatherall +1

I'm afraid that does not work, because the previous route (let's call it Previous) is not there. There is no file Garmin\Courses\Previous_course.fit, there is also no file Garmin\Calcs\Previous_course…

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0 1970122 over 1 year ago

I had exactly the same happen today. I rode a course in Germany on Saturday. Today I deleted all courses from my Garmin, and uploaded a new one through Garmin Connect. When riding I had the line but the navigation instructions were sending me to the course I rode on Saturday, even without that course being present on my device! When tapping the first instruction I even got the complete instructions for the course of Saturday! The only way to ride my course today was by looking at the screen and following the line.

Software version 17.29

0 L.Rouge over 1 year ago in reply to 1970122

Did you have “Turn Guidance” ON or OFF, prior to 17.26/17.29 the wrong directions (ghost courses) issue seemed to be mostly for riders with it OFF but since has been reported with it ON as well.

ps Did you delete courses via the 1040 Courses screen so that they also get deleted in the CALCS & POINTCACHE directories. I had same a few weeks ago and can’t find any trace of the ghost course in any directory , I listed the many other mentions of this issue on both 1040 and now 840

forums.garmin.com/.../ghost-course-chevrons-missing-wrong-navigation-instructions-17-29

0 1970122 over 1 year ago in reply to L.Rouge

Turn Guidance is On.

I deleted the courses in the Courses screen of the Garmin, and there was only 1 course there today, but after checking by connecting the device to my computer after the ride there still were files remaining in the CALCS folder of previous courses.

Anyway, CALCS folder files or not, we should not be deleting files on our device for this to work correctly. This bug has been around a long time (I experienced it for the first time 4 months ago). It's incredible how something basic like this does not work on Garmin devices. I never had this happen in 2+ years of using a Wahoo bike computer.

Because they have some very powerful functionality on their bike computers I stick with them, but otherwise I would have gone back to using a Wahoo ROAM a long time ago. That thing is a lot more basic, but it never failed me, never crashed, never had weird behaviour.