...
- In simulations, time is subdivided into more or less small steps. The more substeps, the better the simulation.
- Hybrido uses a very small number of substeps. With fast particles or moving objects it is very likely that the fluid literally cannot "see" the object.
- Go to RealFlow's → "Simulation Options: Hybrido" and increase Liquid - Hybrido Solver > MAX substeps to 3 - 5.
...