I have a bug/problem thats already been fixed but Id like to prevent in the future:
Im playing as the Itallian king of France (won it in a Crusade) and something bad happened, as it turns out my king only had daughters so I was reliant on them to hopefully bear a son. 2 of them had matrilienial marrages so I wasnt worried about succesion yet, however, 2 of them died along with my only grandson who was assassinated. I was disappointed at this series of events but not too broken up intially, I still had one daughter left. however a message popped up claiming I had no heir of my dynasty, clearly my daughter is in a matrilinieal marriage and of my dynasty so why would it bring this up? I had been using the Oldest child succession law (I cant remember the spelling) before and it wasnt recognizing my daughter even though my gender laws were Agnatic-Cognatic. why did this happen?
Your daughters are not adding up in my mind. I am cornfused.
You only had daughters.
Two are married matrilineally.
Two of them (daughters) died.
Grandson died. (only one mentioned)
Now you have one daughter left. (is this the third daughter?) Matrilileally married? Any sons by any of your daughters?
How many daughters do you have exactly, married how?
You need to say exactly what succession method you have as people get confused. Gavelkind, Primogeniture, Seniority. (Elective?)
Check your coat of arms to see if anyone is listed as your heir. (Perhaps the warning is in error and your daughter is listed after all) Who is listed if anyone?
Do you have a daughter married normally that had a son? (even if she's younger, if she has a son, her line becomes precedent over an older daughter that has no sons) Did you end up remarrying your current liege to a woman matrilineally by mistake? (ie have a son not of your dynasty who is current heir?) Sorry we need a bit more info to make further guesses...