Topic category: Troubleshooting, bugs, and solutions
My aquatic creatures will stop moving and slowly sink through the water to the ground, then just sit there. These are the conditions I've tested and witnessed it happen under:
-Spawning a dolphin near them or a dolphin swimming into range of them (within about 10ish blocks, more or less)
-If they're spawned/chase/swim around a depth of 5-6 blocks below sea-level (about coordinate height blocks 58-59 or deeper) (this only happens on regular maps--not Super-Flat worlds)
-My aggressive water entities will snap out of this frozen state if they target a player, but nothing else snaps them out of it.
-I've tested presence (like dolphin) with ALL other mobs (vanilla and my mod, excluding testing the Ender Dragon), no others cause this.
I don't know if this is a bug or some setting I'm unaware of. Hours of trying to solve this, researching, and playing with settings did not fix it, so here I am