Achievment points gone?

Is it just with me? I currently have 380 achievment points, but before the 5.4.8 release I had approx. 2500 achievment points. I still have the " <name> the Explorer" title but in the achievment page says I did not get the achievment (World Explorer). So what the hell is going on?

visual bug, it will be fixed soon, your AP aren't gone anywhere do not worry

Ah, alright, thanks mate. :)