Problem with RA packets

[GMazzocato]

Hi,

Apparently my OPNsense config is doing something to it's NDP / ICMP / RA packets that my managed switch isn't allowing them to propagate through the network. Anyone know if it is OPNsense of my switch?

I am using a TP-Link T2500G-10TS. The picture attached is from the MLD Snooping GUI.
RA is set to Assisted, with DHCPv6 enabled in the OPNsense VM.

EDIT: OPNsense is in port 8 and I already tried other ports / cables.