FarManager: Console buffer does not redraw (OpenConsole bug?)

Far Manager version

3.0.6183.0

OS version

10.0.19045.3324

Other software

OpenConsole.exe v1.14.1432.0 or newer.

-- Buffer: scroll with plain keys when Panels are hidden
local function inUserScreen()
  return not APanel.Visible or Area.Desktop
end

Macro {
  area="Shell"; key="Up";
  condition=inUserScreen;
  action=function()
    Far.Window_Scroll(-1)
  end;
}
Macro {
  area="Shell"; key="Down";
  condition=inUserScreen;
  action=function()
    Far.Window_Scroll(1)
  end;
}
Macro {
  area="Shell"; key="PgUp";
  condition=inUserScreen;
  action=function()
    Far.Window_Scroll(-Far.Height)
  end;
}
Macro {
  area="Shell"; key="PgDn";
  condition=inUserScreen;
  action=function()
    Far.Window_Scroll(Far.Height)
  end;
}

Steps to reproduce

1. Download some fresh Windows Terminal release, and extract single OpenConsole.exe.
2. Launch OpenConsole.exe far.exe with single macro file installed.
3. Make sure that console buffer is big, and fill the buffer with something like dir /s.
4. Hide panels with Ctrl-O and play with <kbd>Up</kbd> and <kbd>Down</kbd>, just to make sure that all works as expected - buffer scrolling is ok.
5. Now try <kbd>PgUp</kbd> / <kbd>PgDn</kbd> - and observe the bug: the buffer content is not refreshed after scrolling.
6. Press e.g. <kbd>F10</kbd> and observe that buffer gets at last refreshed.

Expected behavior

• v1.14.1432.0 - the first “bad” version
• v1.13.11431.0 - the last “good” version

And even v1.13.11431.0 performs worse than conhost.exe.

• conhost reacts on <kbd>PgUp</kbd> immediately
• OpenConsole v1.13.11431.0: reacts after small delay (though I did not try to track it down to earlier versions)

P.S. It would be interesting to try it with conhost.exe in Windows 11 as well, but I have no one. @yegor-mialyk?

Actual behavior

Apparently this is bug in Windows Terminal code, so why I report it here?

• To confirm that it is reproducible
• And because i do not have enough competence to explain the bug without mentioning Far Manager, Lua macros, etc. I hope @DrKnS can help me with this.
• And it also possible to find some workaround, to force redraw console.