Key down/up events not reliably received with raw input on

[t5mat]

When raw input is on, some key down/up events are not reliably received from the raw input API.

This causes the view to sometimes keep turning after a turn key is released, or not turn at all when pressing a turn key.

• Issue happens rarely and is not deterministically reproducible
• Issue seems to be more prevalent soon after alt-tabbing into the game (?)
• Issue seems to be more prevalent on lower-end PCs (?)

I have no idea what can cause this. The raw input API is pretty simple and straightforward with how to receive events, and there's seemingly no way for another application using raw input (the game) to "swallow" events.

Might be related

Any insight would be appreciated.