The keyboard shortcut for the command pallet (Ctrl+Shift+P) has stopped working in VS Code. When I go to File -> Preferences -> Keyboad Shortcuts I can confirm that only the default keybindings are present for the Ctrl+Shift+P key combination.
However, when I click Record Keys and type Ctrl+Shift+P then only "Ctrl+Shift" shows in the keybindings search box. So it seems that VS Code is never receiving the P when Ctrl+Shift is held down, but it does receive the P for other combinations (for example, Ctrl+P).
Clearly something is preventing VS Code from receiving the full key combination. How do I identify it?