So I was playing Realms until my game crashed. I went back on the Realm, and my skin hasn’t loaded in yet, so I go into the character created to find that all my purchased content disappeared. Here are images before the event and after the event. I use the Zombie Jockey Harness as an example. Not only did this happen, but my cape button is gone as well.

Quick update: I also checked on Pocket Edition, and I can confirm it’s all gone.