This is related to this issue, which is open on our public issues board: https://github.com/NonEuclideanBattleship/rock-beats-rock-issues/issues/1
We are currently working on a fix, along with a large batch of other issues.
Thanks for commenting to let us know! Feel free to open issues on the public board if you notice any others that aren't yet documented. And thanks for trying out our first game. 😄
- Euclid