I'm not sure I'm encountering a bug, but my game won't progress in any way past "WAIT..." hovering on top of the screen. It doesn't scroll down like "END" did, either.
I was expecting for the "wait" text to either scroll down so I could do something, or to mean that there was something I could still do on that black screen, but nothing seems to happen. It's otherwise a fine place to end the game, but the text seems to outright affirm that there's still things to do without giving me any chance to do anything.