Description
The RDP keymap for the right control key currently specifies the scancode 0x9D:
map 0x9D ~ 0xffe4 # Control_R
This is incorrect. The scancode should instead be 0x1D (same as left control) but with the extended flag set:
map +ext 0x1D ~ 0xffe4 # Control_R
Lacking this, the right control key isn't entirely broken, but it does end up being interpreted remotely as left control.