After clicked "Add or update instruction" button, a pop-up window appeared. When I input the info there is a "saving" message on the window. However after the "saving" message disappeared, no success message showing. Then I click the "save" button and the window closed. But no inputted information saved. I think that is why this app review cant be approved. FB reviewer had never get my testing instruction! Only one app has this problem. the other apps can save success. Help me!