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WPA3 support

The 19.07 release brings initial support for WPA3. However, WPA3 is not enabled by default and requires installing specific packages: to run WPA3 as an access point, hostapd-openssl is needed. For use as a Wi-Fi station, you need either wpa-supplicant-openssl (station support only) or wpad-openssl (AP + station). Due to their large size, these packages are not installed by default, and it is impossible to install them on devices with less than 8MB flash.

It should also be noted that many existing client devices will never support WPA3, and that there are client devices that support WPA2 but cannot connect to an AP configured with WPA2+WPA3 mixed mode. Please only file bugs if you are sure the problem is not client related.

To configure your device as a WPA3 access point, see wpa_modes

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Source: [OpenWrt Wiki] OpenWrt 19.07.2 - Service Release - 6 March 2020

It can be its related on this, a I am not a programmer.