i am using pfsense 2.8.0 with haproxy 0.63_10 and i have 4 sites that redirect to two different web server, i am using two frontend, one for http request redirect to https using rule: scheme https, and a second with type ssl/https(tcp mode) to redirect the request with the acl and the action, now i want to add a new site to one of the web servers i create a new backend (and even tried duplicate) and add the proper acl and action as always did but for some reason since the update to 2.8.0 the redirect keeps going to the wrong backend, i tried a test and rewrote and old backend and updated the acl and rule in the frontend and it works fine, is there a known bug since the update because it keeps happening even after reboot to pfsense and the haproxy service and reinstall of the package.
Have you tried deleting and recreating the backend not form a duplicate?
Have you tried to configure your sites as a shared frontend?
I had that issue as well with my Mastodon sites when I had all the ACLs under one frontend, but it resolved when I used the ACLs each in its own shared frontend.
in the end i just reinstalled the pfsense from scratch and everything works fine i think there was a bug becaues i did the same settings in the fresh version and everything works