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Markdown preview scroll "crawls" at EOF #249278

Closed
@stephenatwork

Description

@stephenatwork

Type: Bug

Start editing a markdown file. Go to EOF and start typing. Note that the preview scrolls up a minute amount on each keypress, then jumps back down & restarts.

Note that editing at a point which is not the EOF doesn't seem to exhibit this issue.

VS Code version: Code 1.100.2 (848b80a, 2025-05-14T21:47:40.416Z)
OS version: Windows_NT x64 10.0.26100
Modes:

System Info
Item Value
CPUs Intel(R) Core(TM) i9-7920X CPU @ 2.90GHz (24 x 2904)
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: enabled
vulkan: disabled_off
webgl: enabled
webgl2: enabled
webgpu: enabled
webnn: disabled_off
Load (avg) undefined
Memory (System) 63.80GB (35.67GB free)
Process Argv --crash-reporter-id 080c2e66-a6ea-4790-a71b-d2d4d5e590c8
Screen Reader no
VM 0%
Extensions (36)
Extension Author (truncated) Version
Bookmarks ale 13.5.0
markdown-mermaid bie 1.28.0
vscode-markdownlint Dav 0.59.0
kusto don 0.5.3
vscode-test-explorer hbe 2.22.1
rest-client hum 0.25.1
better-cpp-syntax jef 1.27.1
cmake-language-support-vscode jos 0.0.9
csdevkit ms- 1.19.63
csharp ms- 2.76.27
vscode-dotnet-runtime ms- 2.3.3
vscodeintellicode-csharp ms- 2.2.3
autopep8 ms- 2025.2.0
debugpy ms- 2025.8.0
isort ms- 2025.0.0
python ms- 2025.6.1
vscode-pylance ms- 2025.5.1
sarif-viewer MS- 3.4.5
remote-containers ms- 0.413.0
remote-ssh ms- 0.120.0
remote-ssh-edit ms- 0.87.0
remote-wsl ms- 0.99.0
vscode-remote-extensionpack ms- 0.26.0
cmake-tools ms- 1.20.53
cpptools ms- 1.25.3
cpptools-extension-pack ms- 1.3.1
hexeditor ms- 1.11.1
powershell ms- 2025.0.0
remote-explorer ms- 0.5.0
remote-server ms- 1.5.2
test-adapter-converter ms- 0.2.1
vsliveshare ms- 1.0.5948
code-spell-checker str 4.0.47
wav-preview suk 2.6.0
graphviz-interactive-preview tin 0.3.5
vscode-proto3 zxh 0.5.5

(1 theme extensions excluded)

A/B Experiments
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pythonrstrctxt:31112756
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notype1:31157159
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dwcopilot:31170013
stablechunks:31184530
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bugIssue identified by VS Code Team member as probable bughelp wantedIssues identified as good community contribution opportunitiesinsiders-releasedPatch has been released in VS Code InsidersmarkdownMarkdown support issuesverifiedVerification succeeded

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