Run all and Execute cells above sometimes skip the first cell

[JohnAtl]

Type: Bug

Open an jupyter notebook (I use python), and click Run All.
or in a cell, click the up arrow to Execute cells above.
Sometimes the first cell does not run.
Clicking either Run All or Execute... a second time, and all cells will run.

VS Code version: Code 1.98.2 (ddc367ed5c8936efe395cffeec279b04ffd7db78, 2025-03-12T13:32:45.399Z)
OS version: Linux x64 6.13.5-200.fc41.x86_64
Modes:

System Info

Item	Value
CPUs	13th Gen Intel(R) Core(TM) i9-13900K (32 x 5500)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on 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: disabled_off video_decode: enabled video_encode: disabled_software vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: disabled_off webnn: disabled_off
Load (avg)	5, 3, 2
Memory (System)	125.48GB (40.05GB free)
Process Argv	/home/john/work/Sleep --crash-reporter-id 9af3d6d8-6596-447a-874f-1c746b0e63a4
Screen Reader	no
VM	0%
DESKTOP_SESSION	gnome
XDG_CURRENT_DESKTOP	GNOME
XDG_SESSION_DESKTOP	gnome
XDG_SESSION_TYPE	wayland

Extensions (36)

Extension	Author (truncated)	Version
Bookmarks	ale	13.5.0
markdown-mermaid	bie	1.27.0
catppuccin-vsc	Cat	3.16.1
ruff	cha	2025.22.0
githistory	don	0.6.20
xml	Dot	2.5.1
copilot	Git	1.292.0
copilot-chat	Git	0.25.1
vscode-github-actions	git	0.27.1
dvc	ite	1.2.27
plantuml	jeb	2.18.1
rainbow-csv	mec	3.18.0
git-graph	mhu	1.30.0
vscode-docker	ms-	1.29.4
debugpy	ms-	2025.4.1
mypy-type-checker	ms-	2025.2.0
pylint	ms-	2025.2.0
python	ms-	2025.2.0
vscode-pylance	ms-	2025.3.2
jupyter	ms-	2025.2.0
jupyter-keymap	ms-	1.1.2
jupyter-renderers	ms-	1.1.0
tensorboard	ms-	2023.10.1002992421
vscode-jupyter-cell-tags	ms-	0.1.9
vscode-jupyter-slideshow	ms-	0.1.6
remote-containers	ms-	0.401.0
remote-ssh	ms-	0.118.0
remote-ssh-edit	ms-	0.87.0
remote-explorer	ms-	0.4.3
material-icon-theme	PKi	5.20.0
vscode-xml	red	0.28.0
vscode-yaml	red	1.17.0
even-better-toml	tam	0.21.2
gcp-switch-config	tik	2.2.7
pdf	tom	1.2.2
vscode-todo-highlight	way	1.0.5

(2 theme extensions excluded)

A/B Experiments

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[DonJayamanne]

@JohnAtl Please can you try installing the latest pre-release version of the Jupyter extension in VS Code insiders.
We fixed this issue in the pre-release version, hence the request to test in vs code insiders.
Let me know if that works.

[DonJayamanne]

If you can still repro this issue, then please can you
Please could you enable logging as follows:

• Open settings & go into Jupyter->Logging
• Change the value to trace
• Reload VS Code,
• Attempt to repro the issue & then copy the output from the Jupyter output panel (use the command Jupyter: Show Output to get to the logs).

[vs-code-engineering]

This issue has been closed automatically because it needs more information and has not had recent activity. See also our issue reporting guidelines.

Happy Coding!

[eject80]

sorry for my terible english.
i have exactly same issue.

look. first cell is not executed.

every time, when i run my jupyter file first time, it make error.

here is my trace log.

trace_log.txt

[DonJayamanne]

@eject80 @JohnAtl I think this may have been fixed in the latest release.
Please can you install the 2025.3 version with the latest version of VS Code.
Let me know how this goes, please do share the logs if you still run into this.

[eject80]

@DonJayamanne thanks for you kindness. i am using 2025.2.0 now.

i will waiting 2025.3.

thanks you.

[DonJayamanne]

@eject80 you need to install the latest version of vsvode

[DonJayamanne]

Should work with latest version #16530 (comment)