That is certainly not the experience we intended you to have with the update. I appreciate your resourcefulness in sharing your steps in hopes to help others. We are going to get this information over to our team right away and will invesitgate this further.
In the meantime, can you share with us your PC build version? Also, does this happen upon your very first login after reinstalling the application? Lastly, do any of these symptoms occur with apps like Skype or Facebook?
Furthermore, if you have a moment to double check the following: Select the Start button > select Settings > Privacy > Camera > and then turn on “Let apps use my camera”. Just to ensure all permissions are properly saving with the app.
Thanks in advance, looking forward to your response!