ImageVault with XhtmlString in blocks

Hello, 

We have encountered a problem regarding EPiServer (v.9.12.3) and ImageVault (v.4.8).

If you have an XhtmlString property on a Page and drag a block containing an XhtmlString to the first property

And then add a ImageVault image using the TinyMCE plugin for ImageVault to the same property like below:

http://imgur.com/oJ4XAbj

The problem starts when you preview or publish the page. All the html tags around the block disappears.

The html looks like this before and after publishing the page:

Before:

<div data-classid="36f4349b-8093-492b-b616-05d8964e4c89" class="epi-contentfragment mceNonEditable" data-contentguid="18a41966-fad2-4e36-912c-dbe5cb998f37" data-contentlink="6103" data-contentname="VideoBlock">Video</div>

After:

<div class="epi-contentfragment mceNonEditable">Video</div>

Points to notice:

• The html tags are still broken if you remove the ImageVault image after publishing the page.
• It works fine if you add the ImageVault image first and the block afterwards.
• It works fine with multiple ImageVault images (no blocks used).

Do you have any clue what could be causing this issue?

Best Regards

Marcus