Got email for Final interview again

Hi guys, I have cleared my Skill based interview, then the managerial round on the accenture office, after that I have given an online assessment. After giving an online assessment I got a mail to schedule the final interview again . Can anybody tell me? Why I am getting this. Does my online assessment gone wrong or something? I called the HR - who asked me to take the online assessment and he said that now my candidature is not with him and he'll check and update me but I am doubtful if he' ll call back.