Created attachment 174308 [details]
Screenshot shows 3 normal wifi networks(1 connected) and another 3 undefined connections

So the WiFi section shows networks without a name. As many as normal networks my wlan card can see. For example in the photo below(you can see that not only those networks appear, I'm also connected to them). OS is updated daily, worst case once every 2 days.
Tried to get info by:
nmcli connection show --active   => shows 2 connection(1 wifi and lo)
iwctl station wlan0 show   => shows just 1 connection
Tried to reboot, reinstall the OS, restart NetworkManager, switch between X11 and Wayland, switch between iwd and wpa_supplicant, clean the NetworkManager cache. Nothing worked
Same bug confirmed by another person on discuss.kde.org:
https://discuss.kde.org/t/i-think-that-is-a-bug/22755/2