Changing Units for External Loads=Instant Crash

Hello,

i created a simulation of a simple beam, and whenever i try to change the units from SI to English or Metric, it instantly crashes.

It is fine when i select the force to be in the "normal' direction, but when i change it to selected direction, and select an edge or line to direct the force, it crashes instantly.  I created multiple studies with different parts/fixtures/forces, and no matter what i do, it always crashes when i change the units to English.

Any thoughts?

Mike

SolidworksSimulation