Alright so one of my shulkers already went missing from my enderchest. Luckily it didn't have anything valuable. Except now it happened again to another shulker, and that kind of did it. Shulkers keep disappearing and I don't know if it's because of the goddamn lag when storing items or just something screwing with me, but I did lose an important shulker. Could I get help with this?

My ingame name is Adriansop,
thank you