[ARCHIVE] Relationships get lost (aka Relationship Culling)

A similar thing happened to me. I hadn't noticed this relationship bug until I had started a new game and then came back to my old game's family. Everyone that my original family had ever met except for best friends seemed to have been purged from their memory. I suppose I'm lucky in that at least my sims still have some of their friends, but so many other sims and co-workers just disappeared from the relationships panel. It's pretty frustrating that this issue seems to have been going on in a lot of games for a while. At least I got my game on sale.

This has only just started happening to me since installing the Get To Work expansion.  Makes game play really difficult. 

Mine started after installing Get to Work and Get Together, but after HOURS of gameplay. So it wasn't immediate at all for me. It is SO frustrating, though. I also have no idea which expansion caused it, as I have seen others talking about it happening from Get Together. Maybe it is both?

Ok, so i don't know if this is suppose to happen but, i like to play with different house holds so i will get some relationships in one household, then i switch to another, and after a few days (Sim days), i go back to the house hold and i go to text my sims best friend and she was gone, every relationship she had with people outside her household, and the sims that are gone from my sims relationship where still all part of the town, why does this happen, its is suppose to, is there a way to stop it?

Neia, a modder No More Relationship Culling Mod, posted an update on the Sims 4 Official Forums of how relationship culling works in the game before a mod is installed.  This is right after the December 2015 patch.  Some things may have been changed in the Jan and Feb patches.

Some info regarding this new relationships culling :
The max number of relationships that a non-played NPC is allowed to have with other NPCs : 10
- The max number of relationships that a played NPC is allowed to have with other NPCs : 20
Exceding those caps will trigger the relationships culling

- When relationships are culled from an NPC relationship tracker due to the number of relationships exceeding the cap, this is how much below the cap the number of relationships will be after the culling : 5
- The relationship depth below which an NPC relationship will be culled, this is for sims that have never been played : 25
- The relationship depth below which an NPC relationship will be culled, this is for sims that have been played in the past : 15
- This is happening between 2am and 5am

There are a couple of conditions that makes Sims completely immune to relationships culling :
- Brother and Sister, Son and Daughter, Grandchild, Grandparent, Parent, Stepsibling, Cousin, Aunt and Uncle, Niece and Nephew, Husband and Wife
- BFF, Good friends
- Divorced, Promised, Engaged, Widow/widower, Married, Significant other, Lovebirds, Lovers, Soulmates, Sweethearts, Total Opposites, Exchanged Numbers
- Enemy, Enemies with benefit,
- First Kiss, Renewing vows, Have done woohoo, Have done woohoo recently, Leave at the altar/Left at the altar, Cheated with, Has been unfaithful, Partners in crime, Getting married, Got cold feet http://forums.thesims.com/en_US/discussion/comment/14391214/#Comment_14391214

The "Have done woohoo" is a tag that is not visible to the player so it's quite hard to say what happened behind the scenes, perhaps this tag was no longer present for some reason. Some of those tags have a duration too, I don't remember which ones but I don't think this woohoo one was. The visible ones (so the ones that appear when you go over a Sims in the relationship panel) seem to have been safe so far in my game.  http://forums.thesims.com/en_US/discussion/864800/my-friends-disappear-of-the-list/p5

This information is currently in the game files according to Neia http://forums.thesims.com/en_US/discussion/864800/my-friends-disappear-of-the-list/p4:

It's in the game files, yes, and it should be moddable, some thresholds can be modified with a tuning mod, removing it completely would required a script mod though.

EDIT (crin): Removed mod link as links to mods are not allowed at AHQ.

Please do not post any links to mods at AHQ as that is not allowed here.

Thanks

I changed this to work in progress as this is by design but I believe EA is still tweaking this just as the Sims culling.

I thought links to mods were allowed in this thread because you didn't remove the other links to mods that other people posted.  @aparkinson752 posted the exact same link to the same mod as I did in this thread.  Please be consistent.

It's possible that I miss links and it's something I was told only a while ago. It's ok to post names (as long as they do not raise the rating) and even where to find them but not with links).

Talking/linking mods policies have been changed a few times. During Sims 3 times, we were not even allowed to talk about them at AHQ. With Sims 4 and them being half-officially supported, we are allowed to talk about it but I was frankly unclear on the linking policies. I have since been given the info, that links are not allowed. Be aware that mods are never supported by EA. They are used at your own risk and hence, the support for them is also very limited on AHQ. You will not find support by any CM, community helpers are of course allowed to help with them but as said, it's strictly at your own risk.

I will go through this thread and remove them all now. Let me know (best via PM) if you see any more that need removing.

@cozycorg Merged with existing thread