After the New Core Update Bug

Just found out that there is no NPC, monster, ppl, portal, mailbox, anything for me..I mean, I can't see them all, but I can still read global chat or party chat or guild chat..I thought I was alone, but I met another ppl with the same problem with me..He couldnt see anyone too and we could only see each other..any help? Since I can't do anything for now else than AFK. Thanks.

Edit: I found out that it's only Visceron, my character has the issue. My other characters dont have this issue.

Close the game and delete WDB, it is inside WoW's Cache folder
Be sure you do not have any weird buff/debuff from some previous quest
If still bugged then open a ticket in-game

Edit: close the game before to delete WDB

Tried your advice but unfortunately it didn't work, thanks anyway!