Product listings in admin are empty


I have added more than 1,000 products and it was listing at the admin side. We can see 10 products on each page when we click on products tab under Administrator Products. This section was working fine and now I observed that products are not listing in that frame. But the page numbers are showing. Nothing I changed on the code. Please find the attachment.

Can anyone please tell me which settings I need to change so that I can see the products.

Thanks in advance

try the following steps:
1)make sure you have no fitler set.
2) are there other languages than english in shop? try changing the language dropdown in top right corner
3) clear tmp/ and update views


Thank You Vanilla. Now the products are listing.I have cleared tmp/ and updated views.