Description: Mining initially gives zero feedback when finding nothing, though it reveals nodes and it appears you're able to 'mine' them. The rocks just don't appear in your inventory until you log out and back in.
Steps:
1. Hit the 'mining' button on your hotbar'. No little text appears over you to say you found nothing.
2. When you reveal nodes, go over to them and hit the button a few more times to collect the rocks. Nothing appears to show you collected anything.
3. Check inventory to find nothing is in there. You can walk as if you're completely unencumbered. Relog and find the rocks are now in your inventory.