Howdy! Yeah, its a bug I'm trying to track down, but its not triggering on any of our machines; May I know your GPU vendor, browser and operating system? Having that information might give me a clue.
I was playing on my (really) old laptop, so that's some integrated GPU, Firefox and Linux Mint (Cinnamon). The frame rate was still decent though for a browser game (close to 40). If you need more details let me know and I can look them up later.
