This issue prompted a review of geometry handling in Geometry Review
Live created PmtInBox features the offset bottom very clearly
ggv-;ggv-pmt-test --tracer
G4DAE export with cfg4-dpib loaded back in via geocache DOES NOT SHOW THE OFFSET ?:
ggv --dpib --tracer
Plotting mesh vertices together with analytic shapes.
Standard geocache exhibits the issue:
Using a recent G4DAE(g4d-) export doesnt have the issue, here DPIB_ALL: