Mail preview showing the same preview for different messages

Stu-art wrote:

Hello,

I'm having problems with Apple Mail. When I scroll through emails in a folder (some of which are an ongoing "conversation") the same content is show in the preview window. If I double-click on them, the actual email is shown. But it takes a long time to search and defeats the point of having a preview window.

I've tried "rebuilding" mailboxes, but it doesn't fix the problem.

Also, some emails are missing from a folder to which I had dragged them. If I search by sender, I find the missing messages, but they are in a folder called "Important". I think I used to have a folder called "Important" but I don't anymore.

Any ideas? Thank you.

Quit Mail.app and relaunch it holding the Shift key. Compare your results

Mail User Guide for Mac - Apple Support