Python: DevUI - Tool call timestamps are being overwritten #1483

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1. Mark Wallace (markwallace-microsoft)

   added

   pythonUsage: [Issues, PRs], Target: PythonUsage: [Issues, PRs], Target: Python

   triageUsage: [Issues], Target: All issues that still need to be triagedUsage: [Issues], Target: All issues that still need to be triaged

   on Oct 15, 2025
2. Mark Wallace (markwallace-microsoft)

   assigned

   Victor Dibia (victordibia)

   on Oct 15, 2025
3. Mark Wallace (markwallace-microsoft)

   added

   devui

   and removed

   triageUsage: [Issues], Target: All issues that still need to be triagedUsage: [Issues], Target: All issues that still need to be triaged

   on Oct 15, 2025
4. Mark Wallace (markwallace-microsoft)

   added the

   Bug

   issue type on Oct 15, 2025
5. Mark Wallace (markwallace-microsoft)

   added this to Agent Frameworkon Oct 15, 2025
6. Victor Dibia (victordibia)

   added a commit that references this issue on Oct 20, 2025

   fix(devui): resolve timestamp overwriting and Content serialization e…

   ...

   fef846c
7. github-merge-queue

   added a commit that references this issue on Oct 23, 2025

   Python: DevUI Fix Serialization, Timestamp and Other Issues (#1584)

   ...

   6b66a34
8. Victor Dibia (victordibia)

   closed this as completedin #1584on Oct 23, 2025
9. github-project-automation

   moved this to Done in Agent Frameworkon Oct 23, 2025
10. juangcarmona commented on Oct 24, 2025

    

    Juan G Carmona (juangcarmona)

    on Oct 24, 2025

    Author

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    Hi, Victor Dibia (@victordibia) and Mark Wallace (@markwallace-microsoft) I'd say this oissue should be reopened (unless the fix didn't reach pypip.org).

    I've just upgraded to latest version, 1.0.0b251016, and I still see issues with times.

    

    Observation:

    • User and assistant message timestamps update dynamically over time instead of remaining fixed.
    • All items in the Events column share the same timestamp.
    • Refreshing the browser doesn’t fix the issue.

    ---

    First message (look at all the times in this screenshot):
    

    About to send a new message (obviously times seen under user and assitant messages are being updated according to system time):
    

    Just send the second message:
    

    And all the items in events column shows same time:
    

    I tried refreshing the browser but the weird behaviour with times is still there:
    

    Note:
    This is minor from a usability perspective but indicates a likely bug or bad practice in how timestamps are handled, either during event transformation or, most probably, in the UI rendering layer.

    Could you verify that message and event timestamps in DevUI are bound to immutable per-item timestamps from the payload, rather than recomputed or shared across renders?

    Thanks in advance!

    👍React with 👍1Reacted by Victor Dibia
11. Reuben Bond (ReubenBond)

    added a commit that references this issue on Oct 28, 2025

    Python: DevUI Fix Serialization, Timestamp and Other Issues (microsof…

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    da24bb8
12. Aris Nguyen (arisng)

    added a commit that references this issue on Feb 2, 2026

    Python: DevUI Fix Serialization, Timestamp and Other Issues (microsof…

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    c57fb5a
13. Evan Mattson (moonbox3)

    added

    ui integration

    and removed

    devui

    on Jun 17, 2026