I've a problem.

I'm trying to include tinyMCE editor in a RollBar system. When some content must be displayed from a PHP variable to edit with tinyMCE, this content is not displayed in Firefox or Google Chrome and I can`t use tinyMCE editor because cursor is not displayed inside.

Please anyone could help me? Thanks

Sample:
<textarea name="producto_desc" id="producto_desc" style="width:80%" class="casillas"><?php echo $fila["producto_desc"]; ?></textarea>

Text is not displayed in textarea (TinyMCE editor) and can`t put cursor inside editor