Sale Markdowns

[antiquewarehouse-woodstoves]

Question:

I had listed 71 new listings in my store.  When I was done I wanted to put them on sale as other similar items like them were on sale in my store.  So I did the markdown 15% off in the Promotion section to start at that time and run for 12 days.   A couple hours later went back to my listings and seen that the program had

skipped every one of my listings that I had wanted to put on sale.  This is the second time this has happened that it won't allow me to put new listings on sale?

Does anyone know why?