I was having a look to different categories and suddenly I noticed that, if I select, for example, "Canada" and after that I want to have a look to "Arquitecture/Buildings", this second category it's not working properly. The first choice is doing a kind of filter for the second one and most of the pictures that are appearing are "Canada" ones (forest, mountains...). It also happens with the rest of categories (Old, city...). If I switch and I choose another "city" (Cambodia, for example) and I select again "Architecture/Buildings" the filter is now about Cambodia...

In the moment that I refresh the website and I go straight to this Category (Architecture/Buildings) it works properly...