Hello. Today at my new world Mycronia I made my home.
I spawned dogs inside my home and spawned endermen during the night just to have their silent ans eerie company outside my home.
I attacked one of the Endermen so one of my dogs could try to uthenize it.
But, the Enderman killed it. Since it teleported inside my home I trapped him in glass blocks to keep him as a research subject in my brewery.
I named the enderman Rob.
Since endermen can no longer just pick up any block anymore, Rob picked a dirt block from behind the stone wall.
I didn't want Rob to be alone, so I spawned Rick to keep him company whom also picked a dirt block from behind the wall.
I was brewing some potions... When I turn around after 10 minutes there is a dirt block at Rob's feet. He couldn't move. But as I was writing down what was happening on paper to pass it upon here I noticed that the dirt block MOVED UP ON IT'S OWN!!!

HOW CAN THAT BE???
After a few minutes the block became Mycellium [I am at a Mycellium biome] and it continued to stand there, making Rob shadowy.

Rick has not had anything weird going on yet.

Why is this happening???