I work in following scenario:
1. iPad Pro (12,9“, iOS 15.2.1) with Magic Keyboard (Swiss Layout)
2. On the iPad, I use the app Microsoft Remote Desktop 10.3.6 (5090)
3. In the app, I RDP to a Windows 11 desktop machine
4. In the RDP, I use VirtualBox to a Windows 10 VM.
The Magic Keyboard is NOT recognized correctly in the VM from (4.). For example, the physical keys 1, 2, 3 and 4 will produce the signs „n“, „m“, „,“ and „.“, while other keys do not produce anything. Physical keys like D and F react as if they were arrow keys. Most keys do not react at all.
Note, that the keyboard works perfectly fine on the iPad itself AND on the RDP Machine from (3.). But solely NOT in the Virtual Box (4.).
I don‘t suspect an issue with the language setting, since this problem affects ALL characters (a-z and 1-9) and not the special characters only.
Hopefully, this can be solved soon, since it would be very convenient to work with that keyboard and RDP/VB setting.