There seems to be a bug where you can receive double potato epis. This bug was first brought to my attention by a league mate of mine, and I have also recently noticed that the bug has affected my character as well. While this bug isn't really a big deal, and players who are similarly affect can simply manually delete the extra epi by themselves. I figured I should report it for bug fixing.
Thank you for your report. We will be investigating this issue and will report it to our developers upon reproduction.
Thank you for your patience. Obtaining the Unbreakable Body Epithet is working normally. Obtaining the new Unbreakable Body Epithet will not delete the old one, however you can do that on your own.