Unable to seed PIC parcels

I am getting this error for my pic simulations:

Warning from des\pic\pic_flow_bcs.f90:196
Warning: Unable to seed parcel along mass inlet BC#: 1
Doubling pic_mi_max_skip, new value = 2000

My inlet BC is a simple cyclone inlet (all files attached)

geometry_0004.stl (172.6 KB)
Fassani_Cyclone_ver2.STL (29.8 KB)
test_cyclone.mfx (17.0 KB)
geometry_0004.stl (172.6 KB)

At what point in the simulation does that occur? I don’t get any error (serial and parallel runs).

This occurred at the very start of the simulation during first 1-3 timesteps. This was on 6 SMP cores