I had a working OpenVPN site-to-site tunnel following this doc: https://docs.opnsense.org/manual/how-tos/sslvpn_s2s.html
After update to 24.7.6 incoming OpenVPN traffic on the client site is denied by firewall:
ovpnc1 2024-10-21T21:52:19 10.1.2.1 10.2.2.1 icmp Default deny / state violation rule
But there is no OpenVPN interface anymore available under firewall rules to create a pass rule.
For some reason, I see all these messages and many people reading, but 0 replies. I do not understand why. I had the same problem. There have been MANY changes to OpenVPN and how it works. You will need to basically start over from what I can see. The old legacy stuff is pretty much gone. Now you have to create instances. The problem I'm running into is the new documentation is pretty lacking. Good luck.