Thanks. That was the issue in my case. The default configuration is: * Mark as read after selection changes Which in my opinion is really weird. I've been usi

Thanks. That was the issue in my case. The default configuration is: * Mark as read after selection changes Which in my opinion is really weird. I've been using email for 20 years and no other client I've used works this way. It's so inefficient since you need to click into a previously read email to mark a different email as read. But, I did switch things to mark it as read when chosen which fixes it.