TS2 Legacy: Bug in Special Event Camera when Having Baby Alien

The Sims 2 Legacy has a bug in the Special Camera Event when having alien babies. Basically, the entire animation of the scene is broken, with a plumbob at the beginning of the scene inside a Sim's body. We don't see the baby appear, everything is broken.

This glitch happened to me, but it also happened to a The Sims youtuber. You can see here,already placed at the right time: https://youtu.be/fEt1PFcDhY8?si=obgvkeOrW0-lLFnk&t=199

Apparently there are also other game mechanics that are broken.