The configuration on this ASA looks correct, and if you can ping the remote router vlan interface, that means that the VPN is up and running correctly.
If you can't ping the remote PC, you might want to check if the PC has any personal firewall enabled that often blocks inbound connections from different subnets. Please try to disable the personal firewall on the PC and try to ping again. Also try to ping other devices in the network, and see if that works.
Also check the remote router configuration to see if NAT exemption has been configured and if there is any firewall features on the router itself that might be blocking the ping.
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...