Session title desync: iOS app shows an unrelated title for a renamed session

Bug

A Claude Code session's title shows correctly in the macOS Claude app but shows a completely unrelated name in the iOS Claude app.

What happened

• Session started with an auto-generated title.
• Mid-session, the session was renamed twice via the mcp__ccd_session_mgmt__set_session_title tool (session_id: "self"), both times to the same ticket-prefixed title. Both calls returned success.
• macOS Claude app: shows the renamed title correctly.
• iOS Claude app (same account, same session, checked at the same time): shows "Albert" — a name that has nothing to do with this session or either of its titles, possibly a title bleeding in from a different conversation.

Expected

Both clients show the current session title, or at worst a stale-but-previous title for this session — never an unrelated one.

Environment

• Session driven from the iPhone Claude app (Claude Code session), also visible in the macOS Claude desktop app
• Host: macOS (darwin), Claude Code agent session
• Model: claude-opus-5 / claude-fable-5 during the session

Happy to provide the session id or timestamps privately if useful for triage.

🤖 Filed with Claude Code at the user's request