Hi. I have been trying to resolve this issue. I first posted the following message on themeforest.
My response –
Hi there – I am setting up your theme and for some reason the portfolio listing has decided to stop rearranging every time I click on a different category. Could you please advise.
Your replied – did you change the slug name of your categories? if so category name and category slug should be the same (example: category name: Web Design; category slug: web-design)
please check on that.. if I dont understand your question please ask it here: http://engine.al/support/
I double checked the slug and category name yet I am still having the same problem.