Ambee integration sensors never change values

Since the release of core-2021.7.0, I installed the Ambee integration. Installation worked fine and all sensors are available, but their values never change. For example the AQI (Air Quality Index) for my location is always the same (18). When looking at other sources, the AQI varies daily. As of this post I am on the latest release (core-2021.7.2).
Is anyone experiencing the same issue?
Thanks!

Ambee is a scam.