|Message: poststep -> GetPhysicalVolume() returns "NULL point GetPhysicalVolume() returns "NULL pointer"||Not Logged In (login)|
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I've been running 4.8. In a G4step of a photon, when I try to GetPhysicalVolume() on the post-step, I get a null pointer ! GetPhysicalVolume() for the pre-step is OK.
I can see that pre-step is in the "World" (and in Air). Though one can't GetPhysicalVolume() for the post-step, one can get GetPosition() for the post-step. I've seen that the post step is at the boundary of the "World" (at least for 1 coordinate).
Is this normal or a bug ?
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