Unexpected blank page between chapters

Haven’t had this happen before. Compiling a novel, each chapter is a folder. In the past, telling it to do a page break before each folder did just that, but now it is producing a blank page between each folder (according to Kindle Previewer). Made no changes to the “Separators” settings in this saved compile. Any ideas as to why this suddenly started happening?

I thought it might help if I included some screen scans of the Compile settings. THANKS!

Have you played around with the Page Padding for folders?

Sorry just seen this:


THANKS! I will check that out.