Entity glitches in Shulkerbox when standing on top with block above when opened.

If entity stands on top of a Shulkerbox and directly above the entity is a block and the shulkerbox is opened by a player the entity glitches in the shulkerbox but not through it. If another player opens and closes the shulkerbox again and again the entity in the shulkerbox gets falldamage. If the Shulkerbox is closed again the entity glitches out again.