First of all CTRL+SHIFT+P does not open a private window in Edge (should be CTRL+SHIFT+N). That being said, opening Quickbooks in a private window seems to work for both Edge and Chrome. Clearing the cache and cookies in these browsers had no effect on the problem. I also opened Quickbooks in Firefox (regular browser window - not private window) and Quickbooks functioned fine. I am going to now use Firefox for Quickbooks and as a backup, private window in Edge or Chrome. I will leave it up to you to decide if you want to figure out why there is a problem with Edge and Chrome.