LDN - Luminis Developer Network

After selecting to read email from the email channel on Home tab, it takes me to email in new ie tab. I delete message, close ie tab, and refresh home tab. Email still shows. I can select same email from channel and go to email on new ie tab again, but the email there is gone. The only way the email shows it's been deleted on the home tab in the email channel is after logging off and relogging in.