I opened a chest and lost connection, so it said “Retrieving chest contents” or so, which resulted in losing the chest and obtaining nothing.
To be more specific, the “retrieving chest contents” message already vanished, but no cards showed up and I could not do anything, so I restarted the game, resulting in losing the chest and contents.
I just had the same thing happen again. This time I wildly clicked around trying to hit the invisible cards. And then waited for 5 minutes before reloading the game. Before reloading I could see it continuing in the background, but the grey overlay from the chest opening screen was still there and it was not closeable, so I had to reload.
According to the play history I recieved a buff and an item, which I actuall recieved, but also gold, which I did not recieve as my total gold after reload was the less than the gold I supposedly recieved.
Another bug is that once in a while my whole browser freezes when I click something in the game. It usually only takes a few seconds to become normal again though.