Achievement bug

http://tinypic.com/r/2zztdh1/5


So I decided to check how many more times I needed to mine for the next achievement and came upon this >.> Reopened it to see if maybe it didn't load right, then it showed for the mine 300 times "84/2000". Sadly, I didn't get a screenshot of that due to getting d/ced. Got back on and it was 0/0 again

Edit: for some reason the image isn't appearing, but the url is correct

The Achievement interface seems to suffer from some sort of lag. You need to go back and forth between achievements before the actual progression shows for it.