I reseted my face picture, but 11:45 am 7/24/21 the software can not capture my face again. Like last week the same situation. Right now I can not launch the exam because the time is out. What can I do now? By the way, when I used the help online chat, even the chat starts the exam software hide the chat I can not see it. Is there any hot key or way to see the chat? If that is my cam's problem , why did not tell me or notice me when I set my face capturing before the exam. Contrary, I successfully set my face capturing before ,but when I launch the exam then it can not capture , that is so irrational.