Hey, We have a 3/4 perspective game running at 800x800 with about 50 32x32 sprites on the screen at one time. After loading our game, within about 30 seconds with movement of our character, the game starts to bog down, shortly hangs, and we receive the error in the Javascript Console: Cannot set property '__next' of null (line 4197 of phaser.js) We are running the dev version of phaser, but have tried with the stable version with no success either. I suspect we just need to optimise our game, but it doesn't seem to be overly complicated - we are surprised that it starts to bog down with only 80 or so sprites on the screen. Any help would be greatly appreciated Thanks