Champion Select Bug

I was in champ select in draft pick when I was making a new mastery. I had just scrolled my mouse over the champions before I opened the mastery editing page. When the mastery pages opened, I noticed that the details on Maokai were still there. I couldn't get rid of it, so I couldn't close the mastery pages as it was in the way. I couldn't select a champion when my turn came and had to leave and take a time penalty! This wasn't my fault and I hope that Riot will fix this soon.