Hi @pdalfarr,
Thank you for your message!
We believe this issue may be related to Firefox. We developed this game using Chromium (v113), so we strongly suggest using Chromium to see if that resolves the problem. Additionally, as @Murdoc0 mentioned, switching to 2D render mode might also help.
Currently, we do not have plans to fix this if it is a browser-specific issue.
Thank you for your understanding, and we appreciate your support for the game!