CK III - Succession issue - Grandchildren stopped being heirs after reforming religion

[Garro8]

Short summary of your issue
Succession issue - Grandchildren stopped being heirs after reforming religion

Game Version
1.8.2 (Robe)

What OS are you playing on?
Windows

What platform are you using?
Steam

What DLC do you have installed?
Royal Court,

Do you have mods enabled?
No

Have you tried verifying your game files (Steam only)?
No

How much "pain" is this causing you?
7

Please explain the issue you experienced in the most condensed way possible
Laws - partition, male dominated. I had 2 sons and 1 daughter. Son A died (had 2 sons), Son B was disinherited (had 2 sons and 1 daughter), Daughter had no rights to inherit and died (had some children too).
So the player-heir was Son A's son - my grandson. I reformed religion and changed gender law to equality. And now I have no heir at all! All my titles will go to my vassal. The succession line doesn't show any of my living grandchildren from Son A or from my Daughter (no matter their gender).
So I do the only thing i can to save the dynasty - restore succession right of my Son B. He has 2 sons and 1 daughter. And though he is a heir now, the succession line only has 2 person now: Son B and his daughter. His sons are ignored somehow.
My Daughters children are also ignored despite equal succession law.

Please explain how to reproduce the issue
Create 2 sons, 1 daughter. Give them all some children. Disinherit son(2) and kill son(1) so that your grandson from killed son is your new heir. Reform your faith to change gender law to equality. Voila, you should have no heirs now.

Is there anything else you think could help us identify/replicate the issue?


I have attached a save game
Yes

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File(s) attached

 

[Garro8]

I think it was somehow connected with my old unreformed religion. If i force my grandson from Son B to convert to new faith, he joins the succession line. But this doesn't work with my grandchildren from Son A and Daughter. If i change their religion the game still doesn't count them as heirs. They have weak claims but do not join the succession line. Their parents (Son A and Daughter) were old-faith when they died and their children are not seen as heirs because of that. It's like some kind of religious block that doesn't allow dead-oldfaith-believer's children to inherit anything from me.

 

[Stronghold44]

Can confirm this is still an issue on the latest patch. Oldest son died, so my player heir was going to be his daughter (my granddaughter) due to equal gender law. Reformed religion near death and set head of faith to temporal, and it then changed my heir to my 2nd son (next oldest kid), and removed the granddaughter from the line of succession. Assuming it's because the dead son's religion was still technically my old religion, so the line of succession just skipped all of his decedents, even though he died years before I reformed, due to the succession law for temporal being "same faith". My other laws were equal primogeniture.

Changing the head of faith to spiritual or none kept my granddaughter as my heir, so this appears to be just a temporal head of faith issue when reforming.

The game also did not recognize the granddaughter as "close family" when reforming, despite grandchildren being listed as "close family" in the game. I was forced to make her a vassal in order to convert her when reforming, rather than her converting automatically. I suspect this is due to her father (my son) being dead, as the game likely only looks for grandchildren of your alive kids when converting religion through reformation, and completely ignores your kids who died, even if they had kids of their own. She was in my court as my ward as well, so it wasn't a "being at a different court" issue