Those scripts have no issues with this product active for me. The condition:
PHP Code:
in_array(THIS_SCRIPT, array('editpost', 'newreply'))
already keeps the plugin from executing if THIS_SCRIPT is not in the given array, so adding that new condition should have no effect.
On reviewing the difference between the current version and the version here, I now see what is likely the issue. I have updated the product at the sites on which I offer support (in my signature).
I am attaching this update here to this post.