This just happened to me. I've been playing for months getting my characters leveled and equipped. I log in tonight and all my artifacts are gone. Even the ones I had equipped. No banners, rings or necklaces. ALL GONE!!!
UPDATE: I exited the game and logged back in. All my atrifacts are back. Whew! Scary crap going on here.
Purchased 5 rare books. went to inbox clicked to remove, screen blinked went to tavern to apply them NO BOOKS! then I noticed it was the 0.00 UTC reset so I closed game & restarted. Stll NO books!! I went to chat this has happened to others but Plarium refuses to acknowledge this problem because the purchase went to the inbox. But it did not go from inbox to tavern! and unless your Vidioing at the time you can't prove it & you must be trying to cheat poor Plarium out of 5 rare books.