Screen sharing automatically paused when playing Mac Keynote presentation

My Google Slides are pausing on my Mac in Zoom, apparently because 'I am sharing the wrong desktop". By using the control and right arrow keys, I can bring the other desktop, which I can't see, up and either select that one or close it down. I still need to test this solution in a live scenario with an audience, though, to make sure this is the problem. I need to use this for a meeting of over 50 people tomorrow, so hoping this is correct!

Just use GOOGLE CHROME to show your slideshow and it doesn't have any problems