That is strange. I control Strava from my Apple Watch, which is connected to my phone. Once I forgot to bring my phone with me, but my watch recorded the entire ride, and I was able to upload it with no issue after the ride. I can also upload rides from my Wahoo Elemnt Roam. I prefer to use my watch/phone combo as I like the heart rate monitor on my Apple Watch (Ultra 2) better than the chest strap monitor from Wahoo.