WYSIWYG Field erased if error in form

I’m having a little trouble with post fields set to WYSIWYG. When there’s an error in the form and it reloads, the info in the WYSIWYG field is lost.

Given that this is a post field, this is kind of big problem. That content tends to be long and the whole point of the WYSIWYG field is to give the user tools to format that long text. So they loose all that time if there’s a simple error in the form.

Is this a common known issue or just happening to me?

Thanks!