Fixed Perl array addressing issues, leading to crashes when loading additional objects at the 3D path preview window.
Fixed Perl array addressing issues, leading to crashes when loading
additional objects at the 3D path preview window.

prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r,prusa3d/Slic3r