Every time I start the game, Nvidia Reflex is not active (it normally would cap my framerate to 225 fps, but when I just started the game, it does not cap it.)
This behavior gets fixed by just disabling and enabling the setting again, and it stays active for the rest of the session.
It could be related to the bugs others experience with the resolution being reset each time they start the game, however, I felt it necessary to report this separate instance of another option not being properly set on start.