html code broken/stripped in cutenews 2...

it seems my news bug out in cn2 when i try to save them with any kind of html code (for example if i put text in the end "source: http://.." or try to embed video with iframe code..).. when i toggle source iframe window is showing but when i press EDIT to save it it just disappears or is truncated/mixed with text above...

checkbox "Use HTML in this article" is grey and turned on so i cannot even turn it off if i wanted it, also article is active