[Bug] Chat UI showing out of sequence messages

ten via Discord

Love the chat UI function as I can easily move conversations around without all the code nonsense. However, on occasion the prompts I paste to run the agent will show AFTER the response to that prompt, so outside of the expected chronological order which can make things very confusing.

Vesa via Discord

I've seen the very same issue.

FireSly via Discord

Cause

In native-chat-session-assembler.ts, messageSortRank forces pending user prompts into a tier below assistant responses:

Rank 0: Authoritative transcript messages (including assistant answers)
Rank 1: Streaming assistant previews
Rank 2: Pending user prompts (pending:* and launch-pending:*)

compareMessages sorts by rank before timestamp:

rank 0 (assistant response)  -->  appears first
rank 2 (pasted user prompt)  -->  appears after response

Even though the prompt timestamp was 7:26 AM and the assistant reply was 8:42 AM, Rank 0 sorts before Rank 2. If prompt pruning lags or fails to match against transcript text, the
prompt stays pinned at the bottom.

FireSly via Discord

 ┌────────────────────────┐     ┌─────────────┐     ┌────────────────┐
 │                        │     │             │     │                │
 │                        │     │             │     │                │
 │ User pastes prompt at  │     │ Top of list ├────►│ Bottom of list │
 │        7:26 AM         │     │             │     │                │
 │                        │     │             │     │                │
 └────────────┬───────────┘     └─────────────┘     └────────────────┘
              │                        ▲                  Rank 2
              │                        │                     │
              └────────────────────────┼─────────────────────┘
                                       │
                                       │
 ┌────────────────────────┐       Rank 0 or 1
 │                        │            │
 │                        │            │
 │ Agent responds at 8:42 ├────────────┘
 │           AM           │
 │                        │
 └────────────────────────┘

Proposed Fix

Re-rank pending prompts ahead of streaming responses so user turns precede the agent's work.
Fall back to timestamps when comparing pending user prompts against transcript turns rather than forcing pending prompts to the tail.

simmonsOS via Discord

Just came in here to mention that I'm seeing the exact same issue and it makes it hard to use the chat UI. At some point, a previous prompt gets duplicated and stays stuck at the bottom of the thread and persists there with all of the subsequent messages appearing before it. Once that duplication happens, other prompts start stacking below that original stuck one.

simmonsOS via Discord

And, then, at some point, the messages/prompts just start not making it to the underlying terminal session.

johnmarktaylor via Discord

Same issues with me too

FireSly via Discord

#24207 is the fix waiting for review.

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[Bug] Chat UI showing out of sequence messages #23851

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[Bug] Chat UI showing out of sequence messages #23851

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orca-discord-issues commented on Sep 30, 2026

orca-discord-issues commented on Sep 30, 2026

Cause

orca-discord-issues commented on Sep 30, 2026

Proposed Fix

orca-discord-issues commented on Oct 4, 2026

orca-discord-issues commented on Oct 4, 2026

orca-discord-issues commented on Oct 4, 2026

orca-discord-issues commented on Oct 5, 2026

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