[FIXED] Family Tree and "Step" relationships broken

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? 1.68.156.1020
What expansions, game packs, and stuff packs do you have installed? All - except Journey to Bori-batuu...
Steps: How can we find the bug ourselves? If you have a legacy style family tree and blended sims families since the Snowy Escape expansion. Oh and floating babies i have no idea why.
What happens when the bug occurs? The family tree of my legacy family lines are broken and the "step" familiy relationships missing, with step children or step parents no longer showing up on sims family trees. I like to play on a rotation basis and some of my sims have trees going back several generations, it's these sims that are having the broken relationship lines. Sims that are married with children from other relationships are also not showing their "step" relationships.
What do you expect to see? The "step" relations of my sims showing on the family tree and registering under the sims relationships, and my family tree working properly again. And no floating baby legs.
Have you installed any customization with the game, e.g. Custom Content or Mods? Not now. I've removed them.
Did this issue appear after a specific patch or change you made to your system? Yes
Please describe the patch or change you made. This only started happening after installing the new exspansion pack. Everything was normal before this and I've also uninstalled all my mods and repaired game to double check.

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The family tree of my legacy family lines are broken and the "step" familiy relationships missing, with step children or step parents no longer showing up on sims family trees.

I like to play on a rotation basis and some of my sims have trees going back several generations, it's these sims that are having the broken relationship lines. Sims that are married with children from other relationships are also not showing their "step" relationships. Forgot to add that I also did a repair on my game once I removed my mods to make sure it wasn't caused by a mod.

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