I discovered this while porting the DMX physics list into my smaller simulation. My sim handled alphas properly using the simple physics list from exampleB1. Something caused by the DMXphysicslist fails to slow down and transport alphas (they never move or loose energy, simulation runs infinitely).
I rebuilt G4 (v11.0.1 on mac monterey) with all new datasets. No errors in building or installing. Then i built the underground_physics example. Run alpha.mac and the following outputs come up (failure to slow or track alphas).
Also says it fails to find NeutronHP capture files for carbon but this should be unrelated.
Is there a bug with the new UG physics example? Can other people successfully run it?