There is an issue with rendering the terrain on certain machine configurations. Game logic itself is unaffected, but the terrain isn’t rendered correctly. Please note that the game is designed to only support GLES3, so if you have an older graphics card, that might be the cause of the issue.
Would you mind sharing your specs (specifically graphics card), OS version and other possibly helpful information? I’d also suggest updating your graphics card drivers to the latest version if you haven’t already.
I might be able to disable certain shader effects to try and fix the issue. I’m unsure about the rules with patching things during the voting phase, but I sent a message to the admin about it.
Let me know if you want me to message you somewhere in case I’m able to fix it so you can try to play the game again.