http://bugs.winehq.org/show_bug.cgi?id=58826
--- Comment #3 from Michael Setzer II mikes@guam.net --- I've also done testing to better see what is happening. If I download new messages. If I use Del key to delete a message, then Del again doesn't work? If I click on the Delete button, it will delete with no problem. But think clicking on button brings back focus, with press the del key is going to some unfocused location, and thus ausing nothing to happen?
Think something has changed. Using del key, cuases the message to delete, and next line shifts up, but focus goes somewhere, and one needs to bring focus back by either kicking on top bar of Pegasus Window or somewhere inside. If clicking on message in window, one generally needs to click twice to get it highlighted (blue).
Hopefully, this will be a quick like to one of the changes in 10.17.