The misaligned altitude profile seems to be fixed in SA 2.35.2, once the app has „post processed“ an activity again. The second blue dot artifact also seems to be fixed.
Ah, I just registered to see if anyone else had this issue, and it turns out it is quite an old one. 😅 It’s mildly annoying, though at least the calories are still registered in the Hammerhead dashboard. Side note is that I’m on Android. 🤖