Version: 1.13.0 (KDE 4.4) (using KDE 4.4.0) OS: Linux Installed from: Unlisted Binary Package Working on an IMAP (not disconnected) account, occasionally a message does not display in the preview pane, when it has been selected. The message is displayed if it is opened in its own window. To reproduce: 1) Make sure the preview pane is enabled. 2) Go to an IMAP folder. 3) Select a message. Outcome: Occasionally (about once in every 30 messages?) the preview pane is blank except for the bar at the side which says "NO HTML MESSAGE". Strangely, sometimes the header block is displayed, sometimes it isn't. Once a message is affected by this, moving away from it and back to that message results in the same behaviour. Moving to a different folder, then back again, usually fixes it. Also, hitting 'v' to display the message source correctly opens a window with the source in, and then preview pane is then populated with the message. I first noticed this with the first pre-release version of KDE 4.4 I tried, which I *think* was beta 2. Thanks.
I can confirm this behaviour with the OpenSuSE 11.2 packages. If I click on another mail and thereafter to the first one, the mail is displayed correctly in the preview pane.
This might help someone trying to track down the cause of this but, but it seems to happen most often (exclusively? not sure...) with messages with attachments.
Thank you for taking the time to file a bug report. KMail2 was released in 2011, and the entire code base went through significant changes. We are currently in the process of porting to Qt5 and KF5. It is unlikely that these bugs are still valid in KMail2. We welcome you to try out KMail 2 with the KDE 4.14 release and give your feedback.