Wait a second for the options to fully load! Then instead of hitting spacebar you can change your selection with the up/down arrow keys
Viewing post in Use Your Outside Voice, Richie Tozier! comments
That is, incredibly strange.
I might end up adding a patch sometime this week that uses WASD in addition to the arrow keys, although I don’t know if that would help your case. In the meantime you could try redownloading the files (although I suspect that won’t do much). Do you know what your operating system/version is?