Tuya humidity and temperature showing "unknown" as values in HA

Hello,

I have a Tuya-compatible, WIFI, humidity and temperature sensor device (see piocture); it integrates well with the Tuya App (where I can see temperature, humidity and battery), and with Alexa (where I can only see temperature, an Alex feature…).

However in HA, whilst correctly seen by the Tuya integration, the temperature and humidity readings say “unknown”. Anyone has en idea?