Body of Emails will not display

The body of the emails will not display. The header information shows bit the body of the email does not display. I have selected the email but the body of the emails still now shown. No errors just the display problem.

Right-click on the folder where the email is and choose Properties > Repair. If it is a Gmail account, right-click on the All Mail folder instead.

After the message cache has re-synced, do the message bodies display?