[Bug] Conversation not showing in Agent Manager — data confirmed on disk

Google Antigravity
1

Hi,

I’m experiencing an issue where a conversation is missing from the Agent Manager sidebar, despite all associated data being present on disk.

Environment:

  • macOS (Apple Silicon)
  • Antigravity: latest stable (as of Feb 2026)

Symptoms:

  • A conversation I used extensively over multiple days has disappeared from the Agent Manager.
  • The conversation .pb file (25.6 MB) exists in ~/.gemini/antigravity/conversations/
  • The brain/ folder for this conversation contains 253 files — all intact.
  • The annotations .pbtxt file also exists with a valid last_user_view_time.

Context:

  • During the session, I hit a quota limit and briefly switched to a different agent before returning.
  • After that point, the conversation stopped appearing in the sidebar.

Troubleshooting tried:

  • Full app restart — no change
  • Full Mac restart — no change

Questions:

  1. Is there a known way to re-index conversations so they appear in the Agent Manager again?
  2. Has anyone found a workaround for this issue?

I’ve seen similar reports in this forum (conversations disappearing after updates or undo operations). My .pb file is intact, so it seems like a UI index issue rather than data loss.

Any pointers would be appreciated. I’ve also submitted this via in-app feedback and a support ticket.

Thanks!

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