New Feature in Edge: Provide option to keep specific cookies when closing Edge browser

HotCakeX   Even though I have the Auto Login box checked, every time I go to Webmail,  instead of automatically logging me in, a message saying an “unhandled error has occurred …” appears.  This started after a recent Windows update.  Auto Login works fine with Firefox & Chrome.   At Cookies and other site data I have entered the URL & turned on the switch.  That didn’t fix anything. In fact another site whose Auto Login was not affected by the Windows update, started requiring it after I had added the webmail URL.  I went back & added the newly affected site under Cookies and other site data, now the auto login works for it, but still not the webmail.
Site permissions & all of the other switches in the column are turned off. I read the thread at:
https://techcommunity.microsoft.com/t5/discussions/new-feature-in-edge-provide-option-to-keep-specific-cookies-when/m-p/1265153  but am still not able to fix the problem, help.  Thanks