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Powershell Write-Progress flicker when text scrolls underneath #10910

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opened 2026-01-31 02:33:29 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 02:33:29 +00:00
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Originally created by @ghost on GitHub (Oct 6, 2020).

Environment

Platform ServicePack Version      VersionString
-------- ----------- -------      -------------
 Win32NT             10.0.18363.0 Microsoft Windows NT 10.0.18363.0

Windows Terminal version (if applicable): 1.3.200921001-release1.3

Any other software? Powershell 5.1, pwsh 7.0.3, and cmd.exe loading pwsh 7.0.3.

Steps to reproduce

Powershell:

1..50|%{Write-Progress "Looping"; $_; start-sleep -Milliseconds 50}

Expected behavior

Powershell's Write-Progress bar remains solid above the top few lines of output. From Windows Powershell natively:
PowershellNoFlicker

Actual behavior

The progress bar flickers while output scrolls underneath it.
TerminalFlicker

Originally created by @ghost on GitHub (Oct 6, 2020). # Environment ```none Platform ServicePack Version VersionString -------- ----------- ------- ------------- Win32NT 10.0.18363.0 Microsoft Windows NT 10.0.18363.0 Windows Terminal version (if applicable): 1.3.200921001-release1.3 Any other software? Powershell 5.1, pwsh 7.0.3, and cmd.exe loading pwsh 7.0.3. ``` # Steps to reproduce Powershell: ```powershell 1..50|%{Write-Progress "Looping"; $_; start-sleep -Milliseconds 50} ``` # Expected behavior Powershell's Write-Progress bar remains solid above the top few lines of output. From Windows Powershell natively: ![PowershellNoFlicker](https://user-images.githubusercontent.com/47949180/95221829-79496a80-07bd-11eb-83e8-674889ac0bc1.gif) # Actual behavior The progress bar flickers while output scrolls underneath it. ![TerminalFlicker](https://user-images.githubusercontent.com/47949180/95221012-a47f8a00-07bc-11eb-9cb2-978262356d4a.gif)
claunia added the Resolution-ExternalNeeds-Tag-Fix labels 2026-01-31 02:33:29 +00:00
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Reference: starred/terminal#10910
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