I tried a lot methods from google. none working now. other ports than 80/443 exposured successfully and ipv6 can exposure 80 and 443 port, but ipv4 failed
my openwrt version is OpenWrt 21.02.1,
Let's see the rules you have applied: uci export firewall; iptables-save -c -t filter
Make sure you have tried to access the ports from the wan to have hits on the firewall.