Optifine + FTB 152ngt

[wonderprince302]

Hello!
I have added Optifine 1.5.2 HD U D3 to the FTB 152ngt pack.
It has caused my screen to flicker cyan when in a singleplayer world (haven't tested on multiplayer).
I assumed this was due to an incompatibility with the version of Minecraft Forge, as reloading the world and the game instance did not fix the issue. When I tried to look at the Forge version (via the "Mods" button on the title screen), Minecraft crashed with this crashlog.
Any help/input is greatly appreciated.
Thank you for your time!

 

[Ashzification]

Try using v2 of the beta pack.

 

[Eyamaz]

if you have your optifine chunk loading set to multi-core, set it to default or smooth.

 

[wonderprince302]

I have actually solved the problem. I was on pack v2, and my chink loading was set to smooth. As it turns out, Smooth FPS caused the problem.