After upgrading to version 3.1.1 and also 3.1.2, I can't add a new post without the first line being messed up, example:
<h1>Some text here</h1>
<h1>Some text here
[<<<<strong>span style="text-decoration:underline;">em>strong>contact-form 1 "Contact form 1"]
Is there any way to get around this? This is driving me mad, and I can't add any new content to my site until this is resolved.