UI Bug: Final output disappears after switching sessions in Windows App

ChatGPT Bugs
, , ,
1

Description: In the ChatGPT Windows Desktop App (Chat mode), switching between sessions causes the UI to lose the final response output when external tool calls/thinking logs are involved.

Environment:

  • OS: Windows

  • Client: ChatGPT Windows App

  • Context: Chat mode interacting with local tool calls / MCP server (tested with Desktop Commander)

Steps to Reproduce:

  1. In ChatGPT Windows App, issue a command that triggers a local tool call via Desktop Commander (which returns tool outputs and thinking logs).

  2. Wait until the model finishes execution and renders the final conclusion text correctly.

  3. Switch to another chat session in the sidebar.

  4. Switch back to the previous session.

Actual Result: The UI fails to properly restore the full message tree. It only renders the expanded tool execution logs and thinking process, while the final conclusion/output completely disappears.

Expected Result: The conversation state should be fully restored upon re-entering the session, keeping the final output visible beneath the tool call block.

Is anyone else noticing this state-recovery issue with tool outputs in the Windows client?

2

Update:
After testing a few more times, this seems to be an intermittent issue rather than occurring 100% of the time (likely related to specific timing or response payload sizes during session switching). I’ll keep monitoring it and update here if I capture consistent trigger conditions.

3

The same is happening here - similar conditions (MCP + tunnel).
Seems to have started happening in the last few days.