Was testing out the new cards in a game with Lord Rat.
Game ended with me having 12 or 13 coins. Got the last Prov, and I bought a Cemetery with the remainder. This caused the game to hiccup. Screen went black and I got a popup box saying, "Your client is too old. Please Ctr/Cmd-reload the page . . ."
This was about the 4th straight game I had played. So, no reason why I would suddenly get a "too old" message; I just feel it has something to do with buying a Cemetery last, or, buying a Cemetery after the last Prov.
Is this a known bug? (Unfortunately, I don't bother to write down--in advance--the ID numbers for 'bot games.)