I am having trouble with SRS adding new words with characters that are not on my list. I am still new to Skritter and only reviewing previously studied material and a lot of what is getting added is over my level. I was sure I was mistaken but I have painstakingly went through all my lists to see where the words may have come from and only become more confused. Also I went to my Viewer to see where the words and characters were added from and they only have a "-" for origin. My only guess is that they are being added from a book I once accidentally put on the list and have since removed.