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Unexpected System.ArgumentOutOfRangeException #5213
Description
Prerequisites
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Exception report
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### Environment
PSReadLine: 2.4.5
PowerShell: 7.6.6
OS: Microsoft Windows 10.0.26200
BufferWidth: 120
BufferHeight: 41
Last 200 Keys:
; o u t p u t S c h e m a = h t t p : / / w w w . i s o t c 2 1 1 . o r g / 2 0 0 5 / g m d & a m p ; e l e m e n t S e t N a m e = f u l l & a m p ; i d = 6 6 b 8 1 e a 6 - 3 0 5 6 - 4 6 d 0 - 8 7 3 f - 7 a 7 7 3 a 9 3 2 6 b c ' Enter
c d Spacebar N R C Tab Enter
l s Enter
c d Spacebar G e o Tab Tab Tab Tab Tab Tab Tab Tab Enter
l s Enter
l s Ctrl+c Ctrl+c c d Spacebar . . Enter
f z f Enter
w m s - p r o x y - l a m b d a - r u s t \ s r c \ m a i n . r s Home l e s s Spacebar Enter
c
### Exception
System.ArgumentOutOfRangeException: The value must be greater than or equal to zero and less than the console's buffer size in that dimension. (Parameter 'top')
Actual value was 43.
at System.ConsolePal.SetCursorPosition(Int32 left, Int32 top)
at Microsoft.PowerShell.PSConsoleReadLine.CalculateWhereAndWhatToRender(Boolean cursorMovedToInitialPos, RenderData renderData, LineInfoForRendering& lineInfoForRendering)
at Microsoft.PowerShell.PSConsoleReadLine.ReallyRender(RenderData renderData, String defaultColor)
at Microsoft.PowerShell.PSConsoleReadLine.ForceRender()
at Microsoft.PowerShell.PSConsoleReadLine.Insert(Char c)
at Microsoft.PowerShell.PSConsoleReadLine.SelfInsert(Nullable`1 key, Object arg)
at Microsoft.PowerShell.PSConsoleReadLine.ProcessOneKey(PSKeyInfo key, Dictionary`2 dispatchTable, Boolean ignoreIfNoAction, Object arg)
at Microsoft.PowerShell.PSConsoleReadLine.InputLoop()
at Microsoft.PowerShell.PSConsoleReadLine.ReadLine(Runspace runspace, EngineIntrinsics engineIntrinsics, CancellationToken cancellationToken, Nullable`1 lastRunStatus)Screenshot
Environment data
PS Version: 7.6.6
PS HostName: ConsoleHost (Windows Terminal)
PSReadLine Version: 2.4.5
PSReadLine EditMode: Windows
OS: 10.0.26100.1 (WinBuild.160101.0800)
BufferWidth: 120
BufferHeight: 41Steps to reproduce
Not sure if it is related: I unplugged my USB dock (with DisplayPort) and HDMI cable, so the Windows 11 Display Settings > Scale may have changed from 100% to 125%? I see the PowerShell terminal font size was changed as I switched tabs. It happened quite some time after I unplugged my laptop though, though I wasn't actively using that Windows Terminal tab until I switched to it, and the exception happened in front of my eyes. I forgot if I pressed any keys just before it happened though.
Expected behavior
No exception
Actual behavior
The above exception happens
Activity
paq commentedon Oct 5, 2026
A deterministic repro with the same stack (
SetCursorPosition'top' = BufferHeight, fromReallyRender→ForceRender→Insert). It uses PowerShell 7.6.6, PSReadLine 2.4.5 and Windows 26200, in a bare ConPTY with no terminal emulator.pwsh -NoProfilein a 175x13 ConPTY and run:Write-. The inline prediction shows the 1,200-character entry.Output. This throwsArgumentOutOfRangeExceptionwith top=13 and BufferHeight=13.We have not seen it with
-PredictionSource None.