Hi,
Every time when I put some html codes in a text block it is gone after I reopened the block for editing.
Well not all codes are gone but some.
For example:

<div class="table-responsive">
<table class="table">
...
</table>
</div>

and after saving and opening the editor only <table class="table">
...
</table> is left

I have the same problem with the wimpy player that I installed and when I put some code's in the block (edit, html) the codes are gone

What do I miss ??