After upgrading, image urls changed

[Alex Choe]

Hi.

I've upgraded prestashop into 1.4.3

But after upgrading shop, all images' urls are chagned.

For example, before upgrading, the image url is like 143-2342.jpg.

but after upgrading, image url is like 143.jpg.

I'm not sure what the problem is.

If somebody knows this problem, plz, help me.

Thanks.