It doesn't really affect the gameplay, but it still persists until after the game is closed.
After a while, my keyboard when pressing "d" also starts to press the letter "f". This also happens with e/r and c/v. This isn't really an issue in game, but even when I close the game when I try to type something that has those letters in it, it'll input both of them.
I'm bad at explaining, so here's an example:
Before: "fun done cone"
After: "fdun dfoner cvoner"
I'm not sure if it's a game issue or a keyboard driver issue, but it seems to only happen after about 5 minutes into the game and I have to restart my computer every time just to be able to type normally again.