
we can't help with your question without knowing what you are asking about. As far as I know there is no "new errors" as we are aware what is possible during the striking process and everything before that. If your refering to a new variety then I could understand and I would send it to a professional to be confirmed and then off to a third party grader(without having to post images online)
IMHO I would post a picture here as many experts are on here.