I'l try the Buttons next time.I've managed to back out from a few unresponsive images/elements with enter and p. If nothing else, F12 backs you out of the current run. Also, the yellow bollard works for me at least, so it's probably not an ubiquitous issue at least. Do you have your game in a file path with non-standard characters or in a really long one? Those two can trip us some games.
And no, the file path is nothing special.
But, I'll move it to another location and we will see