Seg fault while setting BoundaryType.PERIODIC_BOUNDARY to read a GDS file

[chemcharlie]

Installed ViennaPS with the python install script.

When I run GDSReader.py in the example, a segmentation fault occurs when setting periodic boundary condition:

import viennaps as ps

ps.setDimension(3)
ps.Logger.setLogLevel(ps.LogLevel.DEBUG)

gridDelta = 0.01
exposureDelta = 0.005
forwardSigma = 5.0
backSigma = 50.0

boundaryConds = [
// ps.BoundaryType.REFLECTIVE_BOUNDARY,
// ps.BoundaryType.REFLECTIVE_BOUNDARY,
ps.BoundaryType.PERIODIC_BOUNDARY,
ps.BoundaryType.PERIODIC_BOUNDARY,
ps.BoundaryType.INFINITE_BOUNDARY,
]
...