The deeper investigation and possible escape point simulation shows the improper function of the principal poka
yoke device within the EOLT tester. Position of the sensors were allowing, under certain specific angle and way of
insertion the faulty mis-detection of the wrong baseplate.
Secondary (press machine) poka yoke sensor depending on correct work sequence application (Theoreticaly can
be missed by incorrect work procedure.
Based on these findings, we believe that the escape point is the accidental coincidence of the above partial fails of
the mistake proofing items.