So I've run into an issue with the options for hotkeys when it comes to emotes.
I personally use the "ghost keys" F13-F24 when doing hotkeys for things, but trying to assign anything past F15 just doesn't register as being a valid hotkey. I've tried several methods of getting it recognized from using different programs to see if the method I was using was the problem, but it seems to be a lack of recognition of those keys entirely.