Incorrect elevation on course preview and in elevation graph

1970122 21 days ago

I have some courses that I sync through Garmin Connect. On Garmin Connect it shows 259m of total ascent. On my 1040 however it shows 956m of total ascent. When riding the course the elevation profile on the map also shows red/black zones indicating steep climbs, that are not present at all. ClimbPro also shows climbs that aren't there.

At the end of the ride however the actual ridden elevation is correct (around 259), so it's purely a map/calculation problem and not a recording problem.

I'm running firmware 21.18

Any idea what's happening? Screenshots attached:

Top Replies

aweatherall 21 days ago in reply to aweatherall +1

I'm able to reproduce the problem with the 3rd party courses that are synced to Garmin Connected and then delivered to the Edge.

The issue is not on the Edge side. Garmin Connect is changing the elevation…

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0 aweatherall 21 days ago

Was the course created in GC or imported into Garmin Connect?

0 aweatherall 21 days ago in reply to aweatherall

I'm able to reproduce the problem with the 3rd party courses that are synced to Garmin Connected and then delivered to the Edge.

The issue is not on the Edge side. Garmin Connect is changing the elevation data in the file when it builds the FIT file for export to the Edge.

I have a ticket open with Garmin on this.

0 1970122 21 days ago in reply to aweatherall

Imported via Strava

0 1970122 21 days ago in reply to aweatherall

It's not device related, that's for sure. I have a Garmin 840 too and it has the same issue. A course with 1000m of elevation shows up as having 1500, and after the ride I logged 1000m of elevation.

0 aweatherall 20 days ago in reply to 1970122

Garmin have made a fix for this issue.

If you delete the course off of the Edge and resend it from Garmin Connect it should now return a course that has an ascent value that matched what it did prior to the issue being introduced.