Hello Dr.Sassi

here you can find the project file.

https://drive.google.com/file/d/1CTXSnvfQRP-QpBBvmkHRrmKQkkKznKrE/view?usp=sharing

And no, I have not attractors or other forces in the scene. I have checked whether there is some other element disturbin the sim, but I can't find any. I'm not the most expert in particles, so I may be missing something

I'm using a Basic Emitter > Cloner > Rigid Body. When I preview the animation just by playing from the timeline, it all appears correct. But when I cache the object, from the Rigid Body tag (but I also tried from Particle Group) and at that point, after caching it all looks super weird. The balls move with glitches and are not smooth.

Can you please help?

https://drive.google.com/file/d/1gXekBc6zd0DNZNz_n27clkIaSFeVcj28/view?usp=sharing