Lost my gear as if I died

Hey so yesterday I logged in to my lvl 101 assassin for the first time in a while, my gear equipped on me. I played a bit, did not die, and logged out in a low-level town with my gear still there. Today, I logged into my assassin and my gear was gone (still had bracers and neck). I dont believe my account was hacked because my emeralds and horses are still there. It's as if I died while I was logged out. Is there any explanation for this?

 

If you had tomes or anything, the tomes might have been wiped (why? i dont fukin know) and your items got dropped