When I create my first creative world and I switch NEI to be in Creative+ (C+) mode it works just fine. Left-clicking on items in NEI/JEI list gives me a stack while right-clicking only gives me one. Perfect.
However all other creative worlds created after that, even if the previous one is deleted, when I go to C+ mode then it is like it is in recipe mode. Even if I tell NEI to use Cheat mode in it's Options (that's World as well as Global) it still only acts like it is in recipe mode.
I've tested this with FTB Beyond and Sky Factory 3 with the same issue, the first one is fine then ones after it is bugged.
I also tested in an instance that only has NEI and JEI installed and there is no problems at all, no mater how many creative worlds I made.
However all other creative worlds created after that, even if the previous one is deleted, when I go to C+ mode then it is like it is in recipe mode. Even if I tell NEI to use Cheat mode in it's Options (that's World as well as Global) it still only acts like it is in recipe mode.
I've tested this with FTB Beyond and Sky Factory 3 with the same issue, the first one is fine then ones after it is bugged.
I also tested in an instance that only has NEI and JEI installed and there is no problems at all, no mater how many creative worlds I made.