Autodyn SPH problem
 

I am doing my Master thesis in autodyn. I saw in Youtube the tutorial "Видеоурок CADFEM VL1501 - Расчёт высокоскоростного удара по керамической пластине методом SPH". I tried to reproduce something similar with an insert and a workpiece (because my Master thesis is about metal cutting, specifically with turning) but when I create a SPH and delete the solid, at the moment I want to pack the SPH with the material and specify the particle size, nothing happens and in "select SPH objects to delete or pack" appears "0 SPH nodes".
If you could help me with this I would be very grateful.


Teresa