So I found out using the destdiv parameter in the CustomSearch causes an infinite fade loading process.
{CUSTOMSEARCH( wiki="Custom search 12" id="searchfix" destdiv="displayFirstTabDiv")}
I have two tabs on a page each having its own respective CustomSearch for tab content, the problem is any search on Tab1 picks content and display on Tab2 instead of Tab1. Tab2 behaves well.
I thought of having destdiv to restrict display of Tab1 result to a Div on Tab1 but it goes into an infinite load. Perhaps I am missing something.