Setting Character Screen keybind to Ctrl + D or Ctrl + S... Character screen doesn't open

Compare these 2 key Inputs: Character Screen, and Inventory.

If you assign Alt+D or Alt+S to Inventory, it works.
If you assign Shift+D or Shift+S to Inventory, it works.
If you assign Ctrl+D or Ctrl+S to Inventory, it works.

If you assign Alt+D or Alt+S to Character Screen, it works.
If you assign Shift+D or Shift+S to Character Screen, it works.
If you assign Ctrl+D or Ctrl+S to Character Screen, it doesn't work.


This problem occurs whether or not Ctrl is set to Toggle Skill Set, it's unrelated.