[FIXED] Sims in Family Tree Disappearing

Product: The Sims 4
Platform:PC
Which language are you playing the game in? English
How often does the bug occur? Every time (100%)
What is your current game version number? 1.48.94.1020
What expansions, game packs, and stuff packs do you have installed? City Living Cats and Dogs Seasons Get Together Spa Day Jungle Adventure Parenthood Outdoor Retreat Dine Out Laundry Day Stuff Bowling Night Stuff Vintage Glamour Stuff Spooky Stuff Cool Kitchen Stuff
Steps: How can we find the bug ourselves? Have a Legacy Family
What happens when the bug occurs? Sims are deleted from the Legacy Tree
What do you expect to see? Sims not deleted from the tree
Have you installed any customization with the game, e.g. Custom Content or Mods? Yes
Did this issue appear after a specific patch or change you made to your system? Neutral/Not Sure 

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Hi! I'd like to report a bug about family tree culling but it isn't really the same(?) as the other reports wherein the picture just gets blacked out and you cant click on it. 

My problem is that the sims and their children are actually disappearing for some reason? and i'm not so sure as to if its because of the CC or MODS because even before I had CC and mods in the game, they started disappearing. As of now, I have MCCC and UI Extentions. Here are some screenshots of the family tree i took before and now. The first 3 files attached are the ones taken around September-October. and the ones clipped onto this post is the one from today. as you can see 2 sims from the right side of the tree got deleted for some reason; (and their children too.) Thank you for help!