OPERA Fieldmap and zgoubi lattice element can't be combined into a new line

[Spansolo]

When I replace a dipole element from a lattice converted from mad-x with a ToscaPolar fieldmap read in from OPERA, zgoubidoo plots the fieldmap on top of the existing elements when a survey is run, and the global tracking data can't be accessed either. The first screenshot is the survey with the dipole element, the second is replacing the dipole with the fieldmap. Thanks in advance


cc @chernals