I had the same the issue with demo contents, so i raised a ticket but it didnt work. after that i removed all the demo products added again. after that it worked. so i added 20 products some time back. today i started adding new products and its not showing the product and the categories properly (i tried adding a new category and product still its not showing). Also the product count is 5 but inside it has more. can you please check im really tried of trying to fix this issue. please help.