Hi there,
I have a problem with configuring wifi on new hap ax3. There are no any wifi interfaces. Is this a hardware problem?

also in logs:
DefConf gen: Unable to find wifiwave2 interface(s)

Wireless driver for ax devices is wifiwave2 which is generally optional package in additional packages archive, available from download.mikrotik.com ... once optional package is installed, upgrade (from within ROS) does it for those packages as well.