Auxilary Sweep starting at 0.0

Hi

I have a stationary solid mechanics model that involves large displacements and uses hyper-elastic materials etc.

Setting up a "Parametric sweep" node under "Study" I am finding that some configurations run fine with a auxiliary sweep "range(0.0[psi],5.0[psi],100[psi])" whilst some stop with no error or results but will run using "range(0.1[psi], 5.0[psi],100[psi])" ...what could be the possible reasons for this?

Thanks Colin