Chat output response collapses or is cutoff #287897
Description
Type: Bug
I believe this is the same issue as #286959, but that issue was closed and has I am still seeing the bug on the latest version of insiders. It may also be related to #286448.
The chat output is consistently cutoff during the working stage.
Logs
These are the logs from the GitHub Copilot Chat output window.
2026-01-14 16:28:09.433 [info] message 0 returned. finish reason: [stop]
2026-01-14 16:28:09.433 [info] request done: requestId: [13099010-d298-4337-ae83-3a6a7420517d] model deployment ID: []
2026-01-14 16:28:09.437 [info] ccreq:dd93c285.copilotmd | success | gpt-4o-mini-2024-07-18 | 427ms | [intentDetection]
2026-01-14 16:28:09.834 [info] message 0 returned. finish reason: [stop]
2026-01-14 16:28:09.835 [info] request done: requestId: [b0691f38-274f-4442-bbd6-1c4943736042] model deployment ID: []
2026-01-14 16:28:09.838 [info] ccreq:3fc1d95b.copilotmd | success | gpt-4o-mini-2024-07-18 | 375ms | [title]
2026-01-14 16:28:10.882 [info] message 0 returned. finish reason: [stop]
2026-01-14 16:28:10.882 [info] request done: requestId: [e2fb1a67-a076-476b-bc16-3f18eccfd515] model deployment ID: []
2026-01-14 16:28:10.884 [info] ccreq:3ff7071e.copilotmd | success | gpt-4.1 -> gpt-4.1-2025-04-14 | 1400ms | [panel/unknown]
Chat window:
Extension version: 0.36.0
VS Code version: Code - Insiders 1.109.0-insider (Universal) (17523c0, 2026-01-14T10:29:51.420Z)
OS version: Darwin arm64 25.2.0
Modes:
Logs
Trace: choice {"delta":{"content":" return"}}
Trace: choice {"delta":{"content":" undefined"}}
Trace: choice {"delta":{"content":";\n"}}
Trace: choice {"delta":{"content":" "}}
Trace: choice {"delta":{"content":" }\n\n"}}
Trace: choice {"delta":{"content":" "}}
Trace: choice {"delta":{"content":" return"}}
Trace: choice {"delta":{"content":" phone"}}
Trace: choice {"delta":{"content":";\n"}}
Trace: choice {"delta":{"content":"}\n"}}
Trace: choice {"delta":{"content":"``"}}
Trace: choice {"delta":{"content":"``"}}
Trace: [NES][Triggerer][onDidChangeTextDocument] created
Trace: [NES][Triggerer][onDidChangeTextDocument] Return: ignored document
Trace: [NES][Triggerer][onDidChangeTextEditorSelection] created
Trace: choice {"finish_reason":"stop","delta":{"content":null}}
Trace: [NES][Triggerer][onDidChangeTextDocument] created
Trace: [NES][Triggerer][onDidChangeTextDocument] Return: ignored document
Trace: [NES][Triggerer][onDidChangeTextEditorSelection] created
Info: message 0 returned. finish reason: [stop]
Debug: message 0 details: finishOffset: [undefined] completionId: [{chatcmpl-Cy3dRIqEe1YJ87mYeqe88hwplaONB}] created: [{1768429689}]
Info: request done: requestId: [e2fb1a67-a076-476b-bc16-3f18eccfd515] model deployment ID: []
Info: ccreq:3ff7071e.copilotmd | success | gpt-4.1 -> gpt-4.1-2025-04-14 | 1400ms | [panel/unknown]
Trace: Resolving chat model
Trace: Resolved chat model
Trace: [NES][Triggerer][onDidChangeTextDocument] created
Trace: [NES][Triggerer][onDidChangeTextDocument] Return: ignored document
Trace: [NES][Triggerer][onDidChangeTextEditorSelection] created
Trace: [NES][Triggerer][onDidChangeTextDocument] created
Trace: [NES][Triggerer][onDidChangeTextDocument] Return: ignored document
Trace: [NES][Triggerer][onDidChangeTextEditorSelection] created
Debug: [context keys] Window state change. Needs offline check: false, active: true, focused: false.
Trace: [NES][Triggerer][onDidChangeTextEditorSelection] created
Debug: [context keys] Window state change. Needs offline check: false, active: true, focused: true.
Trace: RemoteEmbeddingsComputer::computeEmbeddings started
Trace: RemoteEmbeddingsComputer::computeEmbeddings success. Elapsed 357.80924999999115
Debug: Related Information: Remote similarly request took 358ms
Debug: Related Information: Successfully Calculated, returning 362ms
Trace: RemoteEmbeddingsComputer::computeEmbeddings started
Trace: RemoteEmbeddingsComputer::computeEmbeddings success. Elapsed 155.25950000000012
Debug: Related Information: Remote similarly request took 155ms
Debug: Related Information: Successfully Calculated, returning 159ms
Trace: RemoteEmbeddingsComputer::computeEmbeddings started
Trace: RemoteEmbeddingsComputer::computeEmbeddings success. Elapsed 288.93504199999734
Debug: Related Information: Remote similarly request took 289ms
Debug: Related Information: Successfully Calculated, returning 293ms
Trace: RemoteEmbeddingsComputer::computeEmbeddings started
Trace: RemoteEmbeddingsComputer::computeEmbeddings success. Elapsed 149.7807499999908
Debug: Related Information: Remote similarly request took 150ms
Debug: Related Information: Successfully Calculated, returning 153ms
Request IDs
13099010-d298-4337-ae83-3a6a7420517d b0691f38-274f-4442-bbd6-1c4943736042 e2fb1a67-a076-476b-bc16-3f18eccfd515
System Info
| Item | Value |
|---|---|
| CPUs | Apple M4 Pro (12 x 2400) |
| GPU Status | 2d_canvas: enabled direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: enabled_on trees_in_viz: disabled_off video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off |
| Load (avg) | 4, 4, 4 |
| Memory (System) | 24.00GB (0.20GB free) |
| Process Argv | --log info --crash-reporter-id c44dbb81-faad-4a28-91b9-73596549599f |
| Screen Reader | no |
| VM | 0% |
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