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6fda82476d
* fix: out-of-bounds read computing tool-ordering max layer height calc_max_layer_height() loops over the extruder count (nozzle_diameter) but indexes max_layer_height with the same counter, reading past the end when that array is shorter. Silent on release builds, aborts under a bounds-checked STL (_GLIBCXX_ASSERTIONS). Read via get_at(), which falls back to the first entry when the index is out of range, as Slicing.cpp already does for this option. Add a fff_print regression test slicing a two-extruder printer with a single-entry max_layer_height. * docs: clarify how max_layer_height ends up short in the regression test Normalization sizes it to the filament count under single_extruder_multi_material, not "a mismatch a profile can ship" as the earlier comment guessed.