Yup i do have this bug too, couldnt connect when set to WPA2/WPA3, so i have to use WPA2-PSK only.
Btw do you get 80mhz 5ghz on ur idevices ? Because I only got 20mhz on 5ghz with whatever setting that i tried.
For reference : https://forum.gl-inet.com/t/different-wifi-5ghz-speed-between-gl-inet-and-my-other-router/27053?u=4rtz1z