I conduct some tests email and I noticed that the Litmus test Outlook 2011 in "full preview" gave no rendering, while Mode "pane preview" displays the email with no problem.

Does this correspond to a coding problem or an internal problem of the test?

some links to see differences :

  1. Full peview
  2. Pane preview
  3. Same problem (for 50% of the mail height) with Iphone 5S - 6 & 6S*

I have the same problem in Apple Mail. For this test, the problem of entry appears random.