Don't use the standalone player
The Standalone Player version of my slideshow failed during presentation last night. Apparently some audio markers were corrupted during creation, which caused the player to stall after one of five segments. I've seen no instructions for how to manually override, jumpstart or troubleshoot the problem. I am stuck with a black screen. Hitting ESC only starts the program over again.
The problem is not in the original slideshow because an mp4 file I created at the same time functions flawlessly.
Conclusion: I'm not going to use this feature again. It's useless.