Sims 4: Mermaid not "floating" in when entering cas

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? 1.52.100.1020
What expansions, game packs, and stuff packs do you have installed? All.
Steps: How can we find the bug ourselves? Enter Create a Sim, click occult then mermaid.
What happens when the bug occurs? The mermaid tail and attributes still appear, but the sim is not "floating" in cas as shown by other players. They stand like a normal sim with the tail clipping through the ground (as if the tail was CC).
What do you expect to see? That my mermaid sim will "float" in CAS without their tail clipping as shown in other CAS videos.
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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I only have the mods: UI Cheats, MC Command Center+Woohoo, No ingredients, no more vampire growling, vamp reflection enabled, vamp sun immunity.

The CC I had I have, I have now disabled with sims 4 mod manager, the only cc I have left are some vampire claws, All Noodles Glossy eyes versions, Averia eyes heterochromia, hidden half-wall enabler and the toffee skin blend by Kumikya.

I know it's a small bug, but I would love having it fixed.