Anything related to this problem would be helpful. Why is there particle loss, even without reseeding or with many substeps (I've tried using 20)? Is there a problem with how I'm using feedback? Why does changing grid size cause volume to increase or decrease?
Funny, I have encountered the exact same problem. Sorry that I am not able to provide you any answers, but I will monitor the responses to this thread closely.
Thank you very much! I owe you for all the time you've saved me.
I thought I could make it work with an accurate scene scale, but this still looks realistic. For others, sepu had bumped up my cup size from 25cm to 750cm and lowered feedback scale from 1 to 0.75.
I did use RBD Hero objects. I wasn't aware of that problem with packed objects, so thank you!