Since last reboot, the keys I've pressed have been repeating at a different speed than set in the setting. Moving the sliders or even turning "Repeat Keys" off doesn't make a difference. It's as if they are repeating at maximum speed, with no extra delay before the first repeated key. Both typing and the use of keyboard shortcuts are affected by this.

My assumption is that the settings are being overridden somewhere. I apologize for the lack of information, but I do not know how to approach this issue.