Ctrl key does not work intermittently on Windows 11 (Mobaxterm)

[TuranTimur]

Bug Description

Keyboard ctrl key does not work out of box

Keyboard mode = all (legacy, map)

How to Reproduce

1. run Mobaxterm SSH terminal client software on windows 11 ( https://mobaxterm.mobatek.net/download.html )
2. open SSH session using Mobaxterm, and join ssh connection.
3. run Ctrl + C on ssh terminal, and find that it does not work

workaround: on Mobaxterm, open another terminal tap, then suddenly ctrl key works

Expected Behavior

Ctrl + C on ssh terminal should work without any workaround

Operating system(s) on local side and remote side

Arch linux Gnome desktop -> windows 11 (actually windows server 2025)

RustDesk Version(s) on local side and remote side

1.2.3 -> 1.2.3-1-x86_64

Screenshots

https://youtu.be/h8J8MmbhDas

Additional Context

Hi. I know this is strange, but I've tested many times and I confirm that it is really happening.

[rustdesk]

tracked by #4367