a previous problem with AJAX haven't been fixed with this new updated :
the issue is that after you switch categories in a sortable portfolio, when you click an item, it still opens what was there before the new category was selected.
example : on a portfolio page:
you're viewing all categories, click on item 1 ; you then switch to another category and open item 1 (which is now different) -> it still opens the same portfolio item from before you switched categories.
after this new Coherence update however, the problem is even more erratic