Grimoire of the Antoran Felhunte Bug

I have an issue that i dropped the item named Grimoire of the Antoran Felhunte from Shatug. I used it and changed the skin. However, one day later it disappear from the saloon. Its been a week since I reported the bug at first.And I found that a similar bug have already reported from July 27 from en forum

There is still no solution and I have turned off all the ui to try, still is not solved. Please fix it as soon as possible! Thank you!