I recentlly started a new campaign and almost complete all mission except DLC1 & season 3.While i start playing the sunken treasure mission line, mission stopped after dilivering Nadasky's Journal.
After the bug happened, i roll back my save data and succeed to find where the bug triggers, but i dont know what exactly trigger this bug.The only difference i can see between two savedatas is the one which can not start mission has settled on another island on trelawney.
Noticed: i do use some mods, but i dont think it's the mods' problem since after bugs happened.I tried to remove mods but the mission wont start either.And i also use some cheats (mainly change the quantity of goods) to locate bug quicker, but i didnt cheat in normal gameplay.
Anyway i will leave the log file, video,mod, setting file and the save files to you guys.Including two savedata and my personal account data and the mods i use.You can find them here : https://drive.google.com/file/d/1HEGiskMHhpqipp4olFnCCpj5_FcbyBLl/view?usp=sharing: (https://drive.google.com/file/d/1HEGiskMHhpqipp4olFnCCpj5_FcbyBLl/view?usp=sharing)
And here's a small video describes bug: https://imgur.com/ZomZUwO