Encased chain cogwheel doesn't work with ajustable chain gearshift

[PVT-gaming2008]

I've got a small problem while trying to build my iron farm, where I attach an encased chain cogwheel(ECC) vertically with an ajustable chain gearshift(ACG). At first, nothing happened when the ACG was powered, but when the ACG got powered up, the ECC suddenly broke out and dropped as item. But when I put it horizontally, even if the ACG was powered, nothing unusual happened then. I hope if it's just a bug in my survival world, especially I've tested it in another creative world and everything's been fine or even another ACG hasn't glitch like that when powered and attached to a vertical ECC.

[hlysine]

I can't think of a reason why it would work in one world and glitch in another. Are you sure you are using the same set of mods when testing both worlds?