Caddy reverse proxy not working after upgrade to 25.7.1_1

[allenlook]

As the topic indicates, I upgraded from 25.4 to 25.7.1_1 and now my Caddy reverse proxies no longer work.

I have three, two of which are directly accessible web pages, and one of which is a service that listens on a port.

All were working fine before the upgrade, but now none of them function properly, and I get an HTTP error 502.

Rebooting the firewall, restarting the Caddy service, and restarting the web servers has not helped.

DNS is working on the firewall and the machines are each accessible by their names on the local network, e.g. SERVER and SERVER.home.arpa.

Any suggestions for further troubleshooting would be greatly appreciated.

[allenlook]

This morning one of the web pages is responding, so the Caddy service and mechanism are good, I just need to figure out why the other two are not responding.  No changes to the system other than the upgrade to OPNsense.