@Tieutieu I really wish this is fixed soon! I don’t experience this issue all time but it comes and goes. I do suspect it is related to the use of the external HR sensor. By the way, in another 7 hours the battery level has dropped from 66% to 50%. Also, what nobody mentions is that this reduces the longevity of the battery. The battery has only so many charge-discharge cycles before it starts to lose capacity, perhaps about 300. So this isn’t just an inconvenience.

@matt-r Hi, yes I have the same problem with the stress values after charging. My Race S shows “stress” in the Daily Resources screen and the resources rapidly decrease. After a night the watch returns to the correct readings. HR readings are quite good at the same time.

@atoponce Wow, what an experience you had, haha! Thanks for sharing. I think from now on I’ll think twice before charging my watch in these kinds of situations.

@raven said in Wahoo Kickr Core 2 speed and distance: @Dwartus said in Wahoo Kickr Core 2 speed and distance: Thank you for your proposal, for that topic when I run outside with my bike, I add a Suunto “Bike POD” which provide to the watch cadence ans speed. Also, I remember that during the run the average speed and speed is given by the “Bike POD”, but at the end of the actvity, GPS data are used to give average speed and distance. Nevertheless, you understood that I didn’t connect/used this Suunto “Bike POD” for Home Trainer activity (also save “Bike POD” battery because unmount). Thanks Oops, I missed this in my last reply. If you already have a speed/cadence sensor you use outdoors, then yes try that as an additional sensor for your indoor rides and it should work. Yes ! Thanks for the hint, I didn’t think about that because actually not installed because Home Trainer period As a conclusion, the Suunto watch Race/Race S (perhaps other models) are not able to catch all the data broadcasted by Wahoo trainer, only power meter can be read (but not as a Suunto “Power POD” because not possible to calibrate it), it’s too bad Thank you

@Horizontal_2 Thank you, the trick that worked.

@2b2bff No question about it! I’ve also been programming since early 1990s and do that for living.

@reijervanrijsbergen I’m having the exact same issue. It’s further complicated by GNSS jamming. I’ve noticed that once the heart rate signal is lost, it doesn’t always recover, even when the watch is worn directly on my wrist rather than over a jacket. Coros HRM + Suunto Race S.

Also bit he bullet and did a factory reset. All works fine now, but it was a pain. Realized how much I customized the settings… let’s hope it’ll keep working stable now.

@frullewulle thank you Anybody else has used the latest SW 2.50.26 and not have issues with the laps being incorrect?

One year later this issue still exists. I did a 50K trail race today that consisted of 3 laps. The arrows were absolutely invisible behind several tracks from multiple laps. There were at least a couple of tricky 4 way trail junctions on the race course where the arrows would be helpful, if they were visible. I didn’t have time to take a picture of my watch because I was racing but here are fragments from the recorded activity: [image: 1771720463549-screenshot-2026-02-21-at-4.33.38-pm.png] [image: 1771720472616-screenshot-2026-02-21-at-4.34.05-pm.png] Please give this simple fix a priority!

@LUIS-RAZORMAX 70% after restart is normal. It is the baseline the Watch assumes until it gets different data. I found that it seems to matter how I wear my watch. If I wear it too tight, it won’t register any changes. Maybe because of the watch is held in a different spot? If I wear it more loose it works better and actually declines.

@geoffrey-reymond Bonjour, est ce que c’est arrivé juste après la mise à jour, que la batterie a diminué ? Jack

@2b2bff You’re right, it was enabled without me ever intentionally doing so… I’ll try. Thank you for now.

@mayakwyllie I can see it in the App - iOS…

@Egika already off the s+ for tunning exonomy, yeah the problem solved. So running 2coniny s+ really lap itself at 15:00 mins. Thanks guys