Cannot map Co-pilot key to Ctrl (Right) properly

Microsoft PowerToys version

0.97.1

Installation method

WinGet

Area(s) with issue?

Keyboard Manager

Steps to reproduce

I first tried to create a key map from Co-pilot key to Ctrl (Right) with:

but got a warning at save:

And mapping is indeed ineffective, then, inspired by this comment from another ticket: https://github.com/microsoft/PowerToys/issues/38358#issuecomment-2767339256, I added following shortcut to map Co-pilot key to Ctrl (Right):

And while it works for usual Ctrl stuff in some application I tested in (Ctrl+C/X/V), it does not work on VirtualBox, for which Ctrl (Right) is the host key combo and it just does nothing (for example Host+C just prints c). I also tried to remap host key combo in VirtualBox, but pressing Co-pilot key with mapped shortcut leads to weird behavior, when pressed I see briefly appear right control then on release it is Windows left, and sometimes a MAJ (shift) appears, here I press/release key quickly:

https://github.com/user-attachments/assets/fd2fa857-a87f-4fd2-b65c-b1516566eda8

It then seems shortcut mapping is partial or broken.

✔️ Expected Behavior

We can remap a single key like right control or alternative with a shortcut works.

❌ Actual Behavior

We cannot remap a single key like right control and alternative with a shortcut does not work.

Additional Information

OS:
Windows 11 Enterprise 10.0.26100 Build 26100

.Net version:
Not sure which your software is specifically using but here is the result of dotnet --list-runtimes:
Microsoft.NETCore.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.23 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.12 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.23 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 9.0.12 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

System Language:
English

User or System Installation:
Id on't know, I installed through winget, then without wizard to choose any install option.

Not running as admin

Other Software

No response

Start in the Keyboard Manager entry point and reproduce the Co-pilot-to-right-Control mappings described in the issue, including the VirtualBox host-key case. Trace the single-key and shortcut mapping paths and compare their emitted key events. Done means the mapping works reliably as a right-Control host key without producing extra Windows or Shift events.