[nftables v0.9.2 | kernel 4.19.93] ICMPv6 ingress dropped despite accept rule

[ѽ҉ᶬḳ℠ <vtol@xxxxxxx>]

Appreciate if someone could be obliged and have a look at the below 
ruleset and let me know where I am going wrong since ICMPv6 is being 
(policy) dropped:

DROP_WAN_IN IN=pppoe-wan OUT= MAC= 
SRC=fe80:0000:0000:0000:e2ac:f1ff:fe65:51ba 
DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=72 TC=224 HOPLIMIT=255 
FLOWLBL=0 PROTO=ICMPv6 TYPE=134 CODE=0

despite an accept statement

--- ruleset

table arp filter { # handle 141
        chain input { # handle 1
                type filter hook input priority filter; policy accept;
                iif "eth2" drop # handle 3
        }

        chain output { # handle 2
                type filter hook output priority filter; policy accept;
                oif "eth2" drop # handle 4
        }
}
table inet filter { # handle 142
        chain input { # handle 1
                type filter hook input priority filter; policy drop;
                ct state established,related accept # handle 4
                ct state invalid drop # handle 5
                iif "lo" accept # handle 6
                iif "br-lan" accept # handle 7
                iif "lan0" accept # handle 8
                iif "lan1" accept # handle 9
                iif "lan2" accept # handle 10
                iif "lan3" accept # handle 11
                iif "lan4" accept # handle 12
                log prefix "DROP_WAN_IN " # handle 13
        }
}
table ip6 filter { # handle 145
        chain input { # handle 1
                iif "eth2" ip6 saddr fc00::/6 udp sport 547 udp dport 
546 ip6 daddr fc00::/6 accept # handle 3
                icmpv6 type destination-unreachable meta nftrace set 1 
accept # handle 4
                icmpv6 type packet-too-big meta nftrace set 1 accept # 
handle 5
                icmpv6 type time-exceeded meta nftrace set 1 accept # 
handle 6
                icmpv6 type parameter-problem meta nftrace set 1 accept 
# handle 7
                icmpv6 type echo-reply meta nftrace set 1 accept # handle 8
                icmpv6 type nd-router-advert meta nftrace set 1 accept 
# handle 9
                icmpv6 type nd-neighbor-advert meta nftrace set 1 
accept # handle 10
                icmpv6 type nd-redirect meta nftrace set 1 accept # 
handle 11
                icmpv6 type 149 meta nftrace set 1 accept # handle 12
                icmpv6 type 151 meta nftrace set 1 accept # handle 13
                icmpv6 type 153 meta nftrace set 1 accept # handle 14
        }
}