I recently installed ACwifidude OpenWrt 22.03-SNAPSHOT r20145-30fca5413b coming from a Kong release and configured it "manually". I remember that I also tested my ddns and wireguard setup and it worked fine. After that I installed and configured stubby. In that context I also updated some software packages, but I don't exactly remember which ones.
Today I experienced that I cannot get a connection from outside to wireguard and another device. Therefore I reverted the changes made due to stubby. At least I believe I found everything The problem remains.
I also noticed that the WAN interface doesn't show my external IP (v4) but sth. like 192.168.0.213/24. I'm not sure if that is an issue or not. At least before the update that was different. Therefore I had to change the IP source of my ddns to URL, which seems to work now.
However, I still don't get a wireguard connection to work. Even not if I change the client from ddns to IP. Firewall rules and forwardings also seem ok.
What I also recognized is that I can not ping my external IP from outside the network. It seems that all incoming traffic gets blocked.
So besides the DoT via stubby and DNSSEC I don't remember that I changed anything else.
I'm not the great OpenWRT expert. Is the anything I could try?