Go into the ignore list, hit "add name", type a couple random letters, and then hit the back button on your phone. It will exit out of the text entry, but also, it will add a blank entry to the ignore list! I noticed this and thought it may have been just my game acting up, but I had a couple other people try it and they got the same results. I'm on an Android, not sure if this happens on iOS or not.
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