I started the update today, went into the start menu, and started a game. But it was acting pretty slow. I wanted to see how the new update looked, so I turned down some other settings and turned on shadows and shaders.
The console was spamming this message "light manager ::uninstallgllights: no lights installed!"
I have never had a problem playing blockland, and this computer is pretty new.
It's a windows 7 aced desktop computer. That I have had for about 6 months.