fzf cli cannot be displayed with ScriptBlock

[CAESIUS-TIM]

I try to bind <C-s> for better history search.

Set-PSReadLineKeyHandler -Chord Ctrl+s -ScriptBlock {
    [Microsoft.PowerShell.PSConsoleReadLine]::RevertLine()
    $command = Get-Content (Get-PSReadLineOption).HistorySavePath | Select-Object -Unique | fzf --height=40%
    [Microsoft.PowerShell.PSConsoleReadLine]::Insert($command)
}

But after pressing <C-s>:

PS> An exception occurred in custom key handler, see $error for more information: Argument types do not match
PS> $error
OperationStopped: C:\Users\user\Documents\PowerShell\Microsoft.PowerShell_profile.ps1:40
Line |
  40 |      [Microsoft.PowerShell.PSConsoleReadLine]::Insert($command)
     |      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     | Argument types do not match

And there's no bug without ScriptBlock.

PS> $command = Get-Content (Get-PSReadLineOption).HistorySavePath | Select-Object -Unique | fzf --height=40%
# Cli displays and then disappears after selecting `ls`.
PS> [Microsoft.PowerShell.PSConsoleReadLine]::Insert($command)ls
# `ls` is appended.