I encountered a weird bug, thou I'm not 100% sure it's a bug or it's normal. At the beginning of the event I bought my first Super Driller Boy pet. Sometimes, he is not drilling items. I leave game on for 30 minutes and not a single item is dropped. I get 'nothing found' and 'item not here' for a whole 30 minutes, 0 items. Restarting game helps, but it becomes pretty annoying when I have to restart the game every 30 minutes. It's normal for not getting items for such a long period (I'm just unlucky) or there is something wrong?
I'm sorry if it's wrong section, but my problem seems like a bug