I am experiencing a hangup in NEI when I arrow over to the "Enchantments" tab of any item. The game hangs, allowing me to highlight items after a 2-4 second pause, but not to click out or escape out of the menu. It can only be fixed after I kill the Task in task manager, so there is no crash report. I am using the basic FTB Infinity but I have added Optifine HD Ultra for 1.7.10 running with Multicore loading option. I am experiencing none of the normal Optifine issues (see through areas, missing textures, etc.) but I know that it can sometimes cause strange issues.
My questions: Has anyone else experienced this? If so, has anyone found a fix or is this being tracked right now?