could you check your browsers console log as you load the game? if there are errors can you take a print screen and message it to me so I can see what's going on and could find a way to fix it?
Sorry for the inconvenience. There was a bug with chest opening that should be stable now.
The moment you open a chest, the contents are saved to the server. You just don't get the gold stars since those are cleared by a refresh. The only thing lost is gold from normal Silver Chests and we're looking into that.
You can view your history by hitting "p" and it will list the contents of those chests so you can see what you got.
If you require more help, please let us know.
Refresh the page.