Describe problem (what you were doing; what happened; what should have happened):
It REALLY fucks up when I enter creative mode to do anything. But it still messes up in other modes too, such as survival and adventure mode. Items keep getting duped, deleted, reappear, and more.
Minecraft Version: 1.12.2
Forge Version: 14.23.5.2860
Mod Version: invcrafting-1.12.2-1.1.0.jar
Single Player or Server: Single player
Describe problem (what you were doing; what happened; what should have happened): It REALLY fucks up when I enter creative mode to do anything. But it still messes up in other modes too, such as survival and adventure mode. Items keep getting duped, deleted, reappear, and more.
Log file link:
Video/images/gifs (direct upload or link):
If your bug is related to anything causing LAG you need to measure the lag by taking a sample https://minecraft.curseforge.com/projects/sampler