I had a look at the save "delian delhi.eu4" and de-ironmaned it with paperman. It looks like there are errors in the list of historical rulers/heirs/consorts in some countries. In the de-ironmaned save it manifest itself as data about a person directly in the date entry without putting it in an extra section. That data is then followed by the correct entry.
A broken entry looks for example like the following(the correct entry starts at foreign_heir):
Code:
1455.10.22={
id={
id=13569
type=48
}
name="Konrad Geuder von Heroldsberg"
country="ROT"
DIP=5
ADM=5
MIL=6
culture=franconian
religion=catholic
personalities={
careful_personality=yes
kind_hearted_personality=yes
}
birth_date=1417.11.11
foreign_heir={
id={
id=13569
type=48
}
name="Konrad Geuder von Heroldsberg"
country="ROT"
DIP=5
ADM=5
MIL=6
culture=franconian
religion=catholic
personalities={
careful_personality=yes
kind_hearted_personality=yes
}
birth_date=1417.11.11
}
}
Some part of this might come from the de-ironmanning, but the ironman save is broken at the same place. The first broken entry is for the country Bosnia (tag order 19). I tried to fix it, but when loading the save I noticed that there are more broken entries and I gave up. I don't know if there are other things broken with the save or how it could happen. Some of the foreign_heir entries which I looked at are very weird(e.g. Byzantium having a totemist heir from a north american tag in 1452 with a queen from Kham (in Tibet)).
There doesn't seem to be anything missing from the save (the game just stops processing it when it encounters a broken entry), so it could potentially be recovered. If you would like to continue it as a non-ironman save, you could use
paperman to de-ironman it and then fix the entries with a good text editor(e.g. notepad++). But I'm not aware of any tool to do such a modification on an ironman save and even if it exists, it would disable achievements unless that part of the save is not protected by the checksum or somebody reverse engineered the checksum algorithm.
Maybe you could make a bugreport with your save, because there is a chance that a bug in the game caused the corruption. This won't help for your game, but a bugfix would prevent the issue from happening again. It is certainly not a common bug, but I have seen one post about a heir/ruler/consort of a culture which should have been impossible at that stage of the game and that could have been caused by the same problem(unfortunately I don't remember the specifics)
Disclaimer: I'm not working for Paradox. I'm just trying to help people.