email not consistently working - XFinity

Since going to the new email format is anyone experiencing issues, such as deleting emails only to find them coming back, not able to go to the spam or trash folder as you get a message that the system has timed out, or is unable to connect, yet your network shows connected and you are able to get to every other website on the planet? I've tried the usual stuff, clearing cache, cookies, etc. all to no avail.