Mod-Version: NotEnoughItems-1.7.10-2.0.9-GTNH-universal.jar
Forge-Version: 1614
Modpack: FTB Infinity Evolved Skyblock 2.0.1 (Modlist on Curseforge)
Log: https://pastebin.com/Dq8qvsZD

Issue Description:
I rarely have an issue that I can't see the recipe of a bookmarked item. I click on the item, the recipe GUI doesn't open and I get a ConcurrentModificationException in the log. Clicking the item multiple times will eventually show the recipe.
I wasn't able to narrow the problem down to specific items or mods that seem to cause this.
Sometimes this issue doesn't happen at all, sometimes 3/4 of attempts fail and throw a exception.

This is a race condition in BloodMagic, that is triggered via the concurrent NEI handler initialization. We fixed it by modifying the BloodMagic source - GTNewHorizons/BloodMagic#10

I'll ponder if there's anything we can do on the NEI side, like perhaps forcefully triggering the BloodOrbCache before concurrent intializating, or adding an option to disable the concurrency.