Minimum Thickness for Simulation Express?

I have a part which is simply a stainless steel cylindrical disc, 35 microns in thickness.

Using simulation express, I would liek to fix the edge of the disc, and apply a uniform pressure to one face.

Whenever I run the simulation, it tells me: Part 1 SimulationXpress study: Failed

I tried running a similar simulation with a thicker disc, and it works. Is there a minimum thickness in SimulationXpress?

SolidworksSimulation