cool! Let me know if you update the game. I really like it so I'd like to keep playing it a little bit when the error is fixed
I couldn't for the life of me manage to recreate this bug. There's one place in the code that could theoretically be causing this (not likely though), and I've fixed that. Also changed the compression for the build, since that's caused errors in the past. I.e. the new build I've put up may be free of this error now (though I can't test it myself).
If it still happens, can you also let me know which browser you're using? Just so I can try to match the conditions as closely as possible.