Water Is not rendered correctly behind Invisible entities while in spectator mode
When the player views an Invisible entity thats in front of water the water does not render.
How To Re-Create:
summon an entity: /summon iron_golem ~ ~ ~ {NoAI:1b}
give it the invisibility potion effect: /effect give @e[type=iron_golem,limit=1,sort=nearest] invisibility 50 1 true
then go into spectator mode: /gamemode spectator @s