Always remember that there's an implict "deny everything" at the end of an access-list. By adding one line with a specific deny as you have, there's an additional line after that that says "deny everything else" and so everything is blocked. What you want is the following:
access-list inside_access_out deny ip any 22.214.171.124 255.255.255.255
access-list inside_access_out permit ip any any
access-group inside_access_out in interface inside
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...