在fadeOut之后，JQuery fadeIn会被调用两次

The situation: I have 8 slides. When the page starts all are hidden except for the starting one, when first one is clicked it fades out and then 3 more fade in one after another, when 3 are there they fadeout(max number which can fit is 3) and then I fadeIn the next 3, after that i hide them and fadein The last one which stays. The result and animation is all fine but I face a problem that after the fadeOut of all slides the next fadeIn gets called twice and it screws the overall look of animation. I tried many things, the stop method, writing it with hide and other things, what could cause the problem?The situation: I have 8 slides. When the page s