What are the requirements for the Maritime Trade Legacy?

They seem to be all over the place. In one of my games nearly every major European dynasty (Welf, Makedon, among others) picked it exclusively.
It might be my mods (improved dynasty legacies?) break it but I reckon it's worth taking a look at.

Originally posted by faber-castell taiwan methlab CEO:

What are the requirements for the Maritime Trade Legacy?

They seem to be all over the place. In one of my games nearly every major European dynasty (Welf, Makedon, among others) picked it exclusively.
It might be my mods (improved dynasty legacies?) break it but I reckon it's worth taking a look at.

The requirements for Maritime Trade are that either you previously unlocked it, OR the dynasty head holds at least one coastal province, and has a capital in various regions along the Indian Ocean (specifically East Africa, India, the Arabian peninsula, Persia, and Burma).

Anyhow, I just quickly loaded into the game to check, and it seems the perks are working as intended - they only show up for dynasties whose heads meet the above criteria, and when I loaded into European dynasties, the perk was not available for the taking. I can probably keep an eye on it when running my test games, though, just in case.

Unless the other mods explicitly modify my code (which I doubt), there shouldn't be compatibility issues with other mods as my perks are added in a file separate from vanilla, so anything that modifies vanilla perks should be fine. Do you think there might be a mod that randomly gives out dynasty perks for whatever reason? Another possibility is if for whatever reason another mod modifies what parts of the world map falls under the above regions (so for example it considers, say, the Duchies of Thrace and Duchy of Rome as part of the Persian region).

Only other thing I can think of is if those other dynasties own territory in the above region - so for example, say, the ERE owns a bit of Persia or something, or the Welfs won a Crusade and also got some extra land in north Arabia.

Error.log is reporting the following issues:
[04:44:00][gameconcepts.cpp:187]: Game concept 'indian_ocean_pirate' has an alias to itself, this is not allowed
[04:44:02][lexer.cpp:332]: File 'music/aachen_flavor_pack_music.txt' should be in utf8-bom encoding (will try to use it anyways)
[04:44:02][lexer.cpp:332]: File 'music/harran_flavor_pack.txt' should be in utf8-bom encoding (will try to use it anyways)
[04:44:02][lexer.cpp:332]: File 'music/tuyuhun_flavor_pack_music.txt' should be in utf8-bom encoding (will try to use it anyways)
[04:44:14][event_target_links.cpp:1832]: Failed to fetch a valid landed title 'b_socotra'
[04:44:14][event_target_links.cpp:1832]: Failed to fetch a valid landed title 'b_socotra'
[04:44:15][jomini_effect.cpp:311]: Variable 'RICE_siberia_courtier_skill_delay' is set but is never used
[04:44:15][jomini_effect.cpp:318]: Variable 'RICE_picked_oracle_of_amun_proper' is used but is never set
[04:44:15][jomini_effect.cpp:318]: Variable 'RICE_socotra_hosted_poetry_contest_no_prize' is used but is never set
[04:44:15][staticmodifier.cpp:148]: Modifier 'RICE_harran_historical_last_of_the_harranians' was not used by the script or code but exists in the database, this is a waste
[04:44:15][staticmodifier.cpp:148]: Modifier 'RICE_harran_historical_ibn_nabhan' was not used by the script or code but exists in the database, this is a waste
[04:44:15][pdx_data_factory.cpp:912]: Could not find data system function 'Kingdom'
[04:44:15][pdx_data_factory.cpp:697]: Failed converting statement for 'Kingdom'

@joedeneen Thanks for the report. Some of those are false alarms and I've fixed the music pack issue, but I'll look into the other errors, thanks!

[12:50:47][jomini_script_system.cpp:169]: Script system error!
Error: geographical_region trigger [ Wrong scope for trigger: landed title, expected province ]
Script location: file: file: events/RICE_red_sea_events.txt line: 1115; RICE_red_sea_event_trigger line: 39

[12:50:47][jomini_script_system.cpp:169]: Script system error!
Error: geographical_region trigger [ Wrong scope for trigger: landed title, expected province ]
Script location: file: file: events/RICE_red_sea_events.txt line: 1189; RICE_red_sea_coastal_event_trigger line: 20

Here are the two main errors that keep showing up in my crash log before it crash.

I modified the trigger file for RICE_red_sea_coastal_event_trigger to this and it stopped crashing for me, at least id did not crash since then, while before it crashed both in a close amount of time. Not sure where those province where supposed to be, so i made-do.

RICE_red_sea_coastal_event_trigger = {
OR = {
any_held_county = {
is_coastal_county = yes
geographical_region = world_africa_west
}
any_held_county = {
is_coastal_county = yes
geographical_region = world_africa_east
}
}
}

@Drago Duval: thanks for the bug report. Seems like it's not recognizing one or more of the provinces, or at least that would be my guess, since the region thing seems to be fine. Are you by any chance running any other mods that modify the provinces, or the title setup, such as a map mod?

I double checked and found out that More Holding mod does modify the Geographical regions.
Edit : No idea why i said Not really at the start of the post.

Originally posted by Drago Duval:

I double checked and found out that More Holding mod does modify the Geographical regions.
Edit : No idea why i said Not really at the start of the post.

If More Holdings adds or modifies geographic regions I would assume it wouldn't cause issues, I was thinking if it for example removed or changed provinces on the map that might cause the issue. When I'm done with work today I can try testing it with More Holdings and seeing if I can reproduce the crashes, though, to be certain.

In the meanwhile, just to be safe, do you have your entire modlist that you were using when you get the CTDs?

Originally posted by Drago Duval:

I double checked and found out that More Holding mod does modify the Geographical regions.
Edit : No idea why i said Not really at the start of the post.

I just tested only More Holdings and RICE in-game, and I could not reproduce any CTDs when triggering the events. I'm suspecting then it might be another one of your mods in conjunction with RICE. Are you using any other mods?

Sorry saw the firswt post while cooking and forgot to answer it yesterday ==_==

Alert when you can demand conversion|mod/ugc_2545408987.mod
Beautiful Females|mod/ugc_2228828005.mod
Better AI Education|mod/ugc_2303479637.mod
Divine Plunder - Raiding Tenet|mod/ugc_2450321381.mod
Doctor Fix - AI Will Now Hire Court Physicians|mod/ugc_2432176898.mod
Duplicate Icon Project|mod/ugc_2375119809.mod
Easier High Kingdom of the North Sea|mod/ugc_2438483464.mod
Fair Ladies|mod/ugc_2245415465.mod
Fair Lords|mod/ugc_2248667521.mod
Interaction Icon Project|mod/ugc_2378432770.mod
Invite Custom Character|mod/ugc_2552406061.mod
Knight Manager|mod/ugc_2293272317.mod
Less Intrusive "Child of my Dynasty" Notification|mod/ugc_2465586701.mod
Less Old Wives - AI Men Marry Younger Fertile Women|mod/ugc_2265131712.mod
LessCadetBranches|mod/ugc_2523146323.mod
Lulu's Events|mod/ugc_2259464577.mod
More Holding Graphics|mod/ugc_2262523658.mod
More Regional Innovations|mod/ugc_2252354244.mod
More Religion Tenets Slots|mod/ugc_2218249327.mod
More Traits - Commander|mod/ugc_2430763812.mod
No more special building religious requirements|mod/ugc_2432516187.mod
Notification when any courtier wants to leave|mod/ugc_2545408251.mod
Regional Immersion and Cultural Enrichment (RICE)|mod/ugc_2273832430.mod
Search for Noble & Debutante|mod/ugc_2548045112.mod
Units Graphics|mod/ugc_2432960150.mod
VIET Events - A Flavor and Immersion Event Mod|mod/ugc_2227658180.mod

At worst ill do a clean install and manyually check each mods.

So I've taken a look thru it. A few of the mods do touch on cultures and history, but nothing I see that would cause issues off the top of my head. I'm starting to wonder if it was just coincidence your game was crashing after those errors came up and stopped after you changed it, because I've gotten those errors before without issue and most importantly I'm still unable to reproduce the issue (even after testing with some of the mods you used above). With that in mind, unless if you have any further details you think might help, I'll just have to keep this in mind in case anyone experiences any similar issues in the future.

I did a clean install of my games and mods, and now it stopped, so it must have been a weird bug ?