{
  "$type": "site.standard.document",
  "bskyPostRef": {
    "cid": "bafyreicr27dk3dhq5dm6zwfdvgjvf5jufknx4asdyfxmacfdruimxp63zm",
    "uri": "at://did:plc:lk3jfj3zq4k4wxnk474axylu/app.bsky.feed.post/3mnoflupv5ka2"
  },
  "path": "/t/built-in-apps-disappear-after-invoking-a-custom-mcp-connector-in-the-same-chatgpt-conversation/1382208#post_4",
  "publishedAt": "2026-06-07T04:09:47.000Z",
  "site": "https://community.openai.com",
  "textContent": "I’m seeing a reproducible issue where built-in ChatGPT Apps/connectors disappear or become unavailable after invoking a custom MCP connector in the same conversation.\n\nThis does not look like an OAuth issue, because both tools work independently.\n\nReproduction steps:\n\n  1. Start a new regular ChatGPT conversation.\n\n  2. Use a built-in App such as Notion. Notion is visible and works.\n\n  3. Invoke a custom MCP connector, in my case a Huawei health-data MCP connector.\n\n  4. The custom MCP connector works and returns normal read-only data.\n\n  5. Try to use Notion again in the same conversation.\n\n\n\n\nExpected behavior:\n\nBuilt-in Apps such as Notion should remain available after invoking a custom MCP connector, or ChatGPT should clearly document that built-in Apps and custom MCP connectors cannot coexist in the same conversation.\n\nActual behavior:\n\nAfter invoking the custom MCP connector, Notion may disappear from the available tool namespace, become unavailable, or the conversation may fail with a “message stream error.” In some attempts, the visible tool/app context refreshes and only the custom MCP tools remain.\n\nAdditional observations:\n\n  * Notion works before the custom MCP call.\n\n  * The custom MCP connector works independently.\n\n  * The issue appears when switching between built-in Apps and custom MCP tools in the same thread.\n\n  * Hard refresh does not reliably fix the issue.\n\n  * This also affects developer workflow, because MCP development often requires using other official Apps such as Notion, GitHub, Gmail, or Hugging Face at the same time.\n\n\n\n\nThis seems like a ChatGPT Apps / Connectors / MCP tool-registry or app-availability state synchronization bug.\n\nI have already escalated this through OpenAI Support and can provide screenshots, timestamps, and conversation details privately if needed.",
  "title": "Built-in Apps disappear after invoking a custom MCP connector in the same ChatGPT conversation"
}