DHCP6 brakes NAT

[cmcooper123]

Whenever I enable DHCP6 NAT stops functioning with this error:
"Filter Reload There were error(s) loading the rules: /tmp/rules.debug:141: rule expands to no valid combination - The line in question reads [141]: no nat on em1 proto { tcp udp } from em1 to 192.168.1.10 port 80"
Configs: https://imgur.com/a/qViuS

[Gertjan]

Normally, "NAT", a pretty pure "IPv4" thing, should have nothng to do with a the DHCPv6 client.
So, I checked your images.

I have two observations :
Your redirecting to a web server I guess, so forget about redirecting udp. TCP is the only protocol your web server is listening to.
Your Destination is set to "Any", make that "WAN Address".

[cmcooper123]

I 100% agree with you and applied your observations but my problem still remains, at this point I have given up and just disabled IPv6