There is already another thread about that: https://forum.suunto.com/topic/13517/how-comes-this-run-is-classified-in-suunto-app-as-anaerobic
I did set up pace zones a couple of months ago, did not update as 9PP didn’t get it till now.
Calclulation in App is TSS ( r ) already, don’t know if this changes as soon as you setup pace zones.
So I am curious what happens to my pace zones with the update.
Did take them form runalyze but I am sure they are just a guess.
So far as I found out, you can change TSS for all by selecting a workout and change it there and you will be asked to change it for all future sessions of that workout type.