Hi jakob-wagner,
Thanks for the files!
The eggs grow based on your particle setup and the scale slider inside the MoGraph Cloner.
When they land on the Stage, the growth might be faster than the calculation, and they go through the Stage.
Things look better if you set the Scale slider to zero in the MoGraph Cloner.
However, if that scaling is wanted, here is an alternative that ensures that the eggs reach full size before the "land.
CV4_2025_drs_25_MGeg_01.c4d
I have those "remeshed", and you get the shape back with an SSD.
The Collision shape was set to Auto, Complex Hull should work or Triangle mesh. Check in Attribute Manager> Mode> Scene> Simulation> Simulation (Tab)> Draw, what works best.
I also set the Scene to 20cm, which was on Default (100cm), and increased the Steps.
Enjoy your weekend