Typing into the members search box called .toLowerCase() on display_name/email, both of which are nullable (e.g. imported members) — a single null row threw a TypeError and blanked the entire members page. Optional-chain the search match, and handle nullable values when seeding the edit form and optimistic update. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>