As of last night, at some point, my game completely reset everything. My HUD layouts, saved gear sets, all of it reset as if it were brand new. I even got the ARR login on the first round of logging in, as if I were brand new to the game.
I'm unsure if this was done before the upcoming patch this evening, but I have never had this occur so drastically.
Nothing else is off or gone; it's just that all my settings have been completely reset.
Before logging out last night, the only issue I had was that screenshots kept saying they failed. But that was it. (and now they are just fine)