I've been using this app for quite a while for school, and it was working generally fine. But for the past 2 and a half weeks everything but my video chat will work. I can join calls, I can look at the chat, I can hear and speak within the call as well, but the video will not come up no matter what I've done. I've tried contacting Microsoft teams to fix it but it still hasn't been fixed. I need to be able to see my video chat for school purposes where my classes are only online.