That helps a lot.
IP Rules 1/5 and 1/6 conflict, and only 1/5 will be used. Delete ones of them.
IP Rules 3/1 and 3/2 are the ones we are worried about, ensure that the LAN is included in the source interface. This can be done by setting it to any, or by creating an Interface Group that includes both LAN and WAN.
IP Rule folder 4 is a little bit of a mess, it looks like there you got the source interface as "any" correct. You are also using WAN as the destination interface instead of core which I would prefer to see as core (that will only work if your routes are right). Also you have some conflicting port forwards (Rules 4/1-2,4/6-7), as they have the same interface and network masks only the first one will ever take effect. Remove one of them.
It looks like your core routes I asked you to make are in a separate routing table, if that is the case they are not going to take effect (at least not without a cumbersome routing rule). Get them on the main table.
No worries, trust me your English is better than my Italian!