`CharCreateCatalog::load`'s misparse guard demanded each race's `CharBaseInfo` classes equal the shipped set exactly. A patch that adds a race/class row therefore failed the load, and without the catalog the create screen is disabled and the glue preview stands no body. 1.12.1's class-list builder (`0x4706b0`) lists every `CharBaseInfo` row for the selected race, skipping only Dwarf+Mage (`0x4706e3`-`0x4706ec`), so the patched class appears there.
The guard, now `shipped_combos_present`, requires every shipped pair to be present and lets extra pairs through, so a misparse that loses a row still refuses. `a_patched_combo_passes_the_guard_and_a_lost_one_does_not` fails under the old exact-match rule. Built and gated on macOS.
Fixes#617🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>