Hi there,
Been checking and I’m not able to replicate the issue this time. Or is it fixed? Could you try adding video again? The sample is in this slider http://hrjwp.temp.lexi.net/wp-admin/admin.php?page=revslider&view=slide&id=new&slider=9. The buttons are now displaying “Add this video”. No error, seems to be cache on my end.
Thanks!