Here is the files for A World of Ice and Fire V4.3.4. This can be installed over your V4.3 files.
Brightened up some terrain borders.
Adjusted Dragonstone to stop Ai getting stuck near it.
If the player owns Dragonstone when Dany invades, then she will declare war on the player and siege the castle.
The same as above but for Aegon.
Rotated Florett model by 90 degrees.
Changed Spy clothing as the current ones were broken.
Adjusted some merc troop tree upgrades.
Small changes to looting to try and fix the looting bug.
Various other small changes.
Some small map changes/fixes.
Adjusted the spawn point for Duskendale siege.
Cattle prices have been redacted but they will no longer give hides when slaughtered.
To enable you to be King/Queen of Westeros your faction also has to hold King's Landing. It's not enough just for you to be the lord/owner.
Mag Mar Tun Doh Weg should no longer participate in tournaments.
No more faction leaders in tournaments. It makes little sense for people like Dany, Balon or Doran etc to take part in tournaments.
Your healing companions can now only heal you if they are not injured themselves.
Slightly adjusted some map textures.
Fixed sometimes not being able to enter the prison door at Highgarden.
Fixed issues when exiting Thorrens Square prison.
Fixed enterprise scenes.
Fixed various issues at Flints Finger.
Fixed Timber Bay scene.
Fixes to Targ faction leaders.
Fixed issues at Ashford.
Added Dawn scabbard fix by @dovahbear.
Fixed showing Dog or Direwolf as an enemy on the after battle kill count screen.
Fixed asking for VC serial key.
Fixed issues with 'A Lannister always pays his debts' quest.
Fixed Deepwood Motte prison scene.
Fixed issues at Red Fork.
Fixed bandit lairs not being removed.
Fixed map issues when sometimes attacking caravans.
Fixed a few issues with skyboxes.
Targaryen lord bug
Unless the Targaryen spawn before around day 150 they may patrol the sea forever. This update 'should' fix it but a new game may need to be started.
Please provide feedback if it is working ok for you on a new game.
If you have trouble looting then make sure your companions are not placed at the bottom of your party.
I am still trying to find as fix for this.