Timing game freeze when Kiora Octopi come into play

UrbanNinja

When you summon Octopi with Kiora, if you click a card in your had to check it while the Octopi are being summoned, the game may freeze.

It happened when I had less than 3 creatures before the ability. In that case, the new card would stay on top and would never get minimized. I think everything else was unclickable.
It happened when I had 3 creatures before using the ability. In that case, the creature selected for destruction was removed, the card I click was brought on top but Octopi would never come in. No swap was possible after that. I was unable to click on cards on the board, but cards on hand were still available