I have a strange problem when trying to add an image by 'Add media' in CKEditor 4.3.1. I know that this topic is very frequent. In most cases the resolution is to check "Convert Media tags to markup" in Text formats configuration... but I have checked this and it's still not working.
I can add an image to media library, after this I can choose an image format, but finally when I try to add the image it's not showing neither in the editor window nor on front.
Seems that no code is adding or the media tags are not converted to markup.
Do you have any ideas?