I also have a crash when using NEI, but it seems to be a different issue entirely.
When I start playing, and regardless of whether I'm in single player or multiplayer, the game crashes to desktop whenever I try to look up what recipes an item is used in in NEI.
I've narrowed down the issue to the following mods and versions:
minecraft 1.7.10
Forge 10.13.3.1395-1710ls
CodeChickenCore-1.7.10-1.0.6.43
NotEnoughItems-1.7.10-1.0.4.106
DragonAPI 1.7.10 V6f
RotaryCraft 1.7.10 V6f
magicalcrops-4.0.0_PUBLIC_BETA_2
Full console output log (1,4 MB)
Crash report log (49 kB)
Removing either Rotary craft or Magical crops resolves the issue to the point where no further crashes occur when looking up the uses for an item. Additionally, looking up the recipes for an item does not cause the crash in either case.