Yes, data from the previous version isn’t compatible with the new one - too many things have been rebuilt from the ground up. If you run into any other issues, feel free to let me know!
Was it the web or desktop build? Which browser are you using, and what version is it? Does the issue occur only in fullscreen mode, or also when the game is windowed?
it happens on windows 11 ,on a bad computer,on fullscreen and it seemed to only happen randomly,i think its because of the bad computer.So i dont think you can fix it.Sorry for the time wasted