Speed Not Showing in Garmin Connect

[GotoesUser]

Hi -- Not sure if this is actually your bug or just different behavior on Garmin Connect... I am using your site to add my HRM to workouts I've been doing on a Tacx Neo trainer. The issue I have is after merging there a spikes in Speed so when plotted on Garmin Connect, the scale for the graph expands such that most of the speed detail is lost (close to flat). In the original TCX imported to Garmin Connect, the scale shows all the expected detail since there are no high speed spikes to capture on the curve. I'm happy to can send screenshots if this isn't clear. Not urgent but if you are familiar with this it would be good to know. Or if there is a specific setting, etc that corrects this that would also be good to know.

[fulmar2]

I used the settings as shown in my screenshot. TCX export, Calculate distance, and Only include tracepoints with Position. Using those settings, the speed looks correct.