Keyboard problem on remote virtual machine

[HateIsForLoosers]

Bug Description

There seems to be a keyboard problem if the remote side has virtual machine open. Inside the virtual machine of the remote side, if the control side tries to type then the keys become sticky, so for example:
-Control side establishes communication with remote side.
-Remote side has a virtual machine open.
-Control side tries to type 'abc' in a field on the remote's side virtual machine.
-Result: aaaaaaaaaaaaaa[now I press b once]bbbbbbbbbb[now I press c once]ccccccccc....
That is going forever until escaping the field.
Tested with VmWare on the remote side machine.

How to Reproduce

The client (control) was win 10.
The server (remote) was win 10.
The VmWare virtual machine was win7.
Try to type anywhere inside server's virtual machine, even in login screen.
I have tested it many similar virtual machines. Windows only.

Expected Behavior

Expected to just typing correctly.

Operating system(s) on local side and remote side

Windows 10

RustDesk Version(s) on local side and remote side

1.2

Screenshots

Nothing to show

Additional Context

No response

[rustdesk]

tracked by #4357