Shulker Boxes are opening and closing in the inventory and when placed.

Shulker boxes that I use to transport goods are feeling nostalgic for the days when a weird creature lived inside of them, as I find my boxes opening and closing in the same way a Shulker mob does. The bug is purely cosmetic but it gave me quite the scare when my wall of boxes started moving together in perfect harmony. This happened first while I was farming shulkers in the end city and continued even after I returned to my base.