Have another issue after the update. Now i’m unable to choose Primary categories in Single blog post. Before the update i can choose the category by click the field but now i need to find the category’s code and put it there to display primary category.
Regarding this issue, please try to clear the cache data from your website and your current browser. Also, to set the primary post category, please try to insert the name of the category that you want to use. On JNews v3 we’ve been switch using lazy load for the primary category option. Let me know if you still getting the problem.