Well the latest version of the mod Pixelmon Reforged 6.2.3 don't work at all, my world (not the game, just world) crash and say connection lost. I've try with more ram, don't work anyway i do nothing work.
I can't play it help me !
I have good version of forge don't worry
pc setup (if needed) :
cpu : intel i5 750 @2.67ghz
gpu : nvidia gt220
os : windows 8.1