Heat Acclimation not working

I've been running interval training for 3 days now for 3 days at an outside temperature of 32°C (90°F) and my temperature acclimatization has stopped working. i didn't even get 1%


The GPS location on the smartphone is ALWAYS ON and the Fenix ​​​​6 is connected to the GC at all times ...

Garmin FW 22.10

Smartphone iPhone 13 iOS 15.6

Does anyone have a solution