Hi, If you have V1 on both ports you will be unable to do this unless
you change the ports to be in a software/hardware switch interface. Then
both ports will be a switch and you can create the VLAN interfaces ontop
of it.
I would suspect that only one of the default routes is entered into the
routing table that is why lan1-wan1 works. Likely what is happening is
that the firewall wants to forward traffic from lan2 out of wan1 but
there is no policy to allow this so it...
You will need to configure SSL Deep Packet inspection to enable the
functionality you need. Without it the FortiGate cannot identify whether
the traffic should be allowed or denied if the traffic is encrypyted
(HTTPS/SSL).
Have you tried allowing epic games in your application control profile?
Also have you tried placing the allow rule for epic games to be above
the rule that is blocking epic games?