@sartoric I have checked it one more time with roller skating altitude.
It really doesn’t work for me.
So, when I was on the bike, I went through the same short route of 400m. It was some uphill.
So with “roller skating” it didn’t count any altitude:
https://maps.suunto.com/move/aleksandrdanilenko/6633f094653cd43dc4dc3912
When I went through the same route with “cycling”, it counted it correctly:
https://maps.suunto.com/move/aleksandrdanilenko/6633f093ac48384059c7fc6e
Let me know, please, if links don’t work.
Then, just for curiousity I checked “roller skiing”. And it seems that altitude counting works there correctly. So, as far as I found, it is only roller skating problem.