Japan, incident won't start

[superscunk]

I just finished my first Japan run which I started as Shimazu.

Unfortunately, I could not complete the Sakoku Law achievement:
- one incident (can't remember which one) did not get counted towards the achievement,
- Proliferation of Firearms does not want to start. It shows an X next to "At least 30 years since last incident". But it has been over 30 years since the last incident. I even continued way past 1821 just to wait...and wait...

Since I didn't know I must go towards "open" during the Spread of Christianity incident to convert to Christianity, I am also missing the Kirishitan Japan achievement. I thought there would be a separate event.

Well, now I'm wondering if those incidents are bugged or if I did something wrong and should try again.
Is there another reason not shown in the tool-tip why an incident wont start like in my case?
Must I always chose the option "sharply to isolationist" for the incident to get counted towards the achievement?


Other than that it was a relaxed run and most entertaining to smash Ming's fleets every time they declared. I took Naval Ideas for the first time ever

 

[paul.canniff]

I keep seeing this same question, months unanswered, and I have the same question. I'm at around 1600 and really don't want to play out the next 200 years if the achievement is bugged or if there's some hidden requirement. Does forming Japan stop incidents? Is once incident bugged?

 

[IoannesBarbarus]

I can only say I did get the achievement when I took every single max-isolation event option, having formed Japan before 1500.