Issues With Portfolio’s Category

Hello, if i chose only 1 category in the portfolio’s category the photo shows correctly, but when i create other category and i try to add, the previous one don’t show anymore, here is the example, when i create the category “cinema & palette” i can see normally all photo inside (you can see in my site, there is no problem http://www.albertoarcudi.it ) But if i try to add other Category, the last category shows well but the other category doesn't show like in this example: https://ibb.co/Khkvwsd i've alredy tried to set a high Number of items to shows but the problem don't solve. What can i do ? Regards, Alby