Thanks for the report, sounds like they're losing track of the cnidaria. Might have to see if I can get them to destroy themselves when the game shuts down

Also, the glaucus didn't spawn that close to shore. I accidentally aggroed it, and that's where it ended up as I flew out of render for a while to get it to de-aggro

For clarity: this is just outside my base, and that glaucus has been there for a good while now. He's been through quite a few play sessions, and seems to be spawning a new set of cnidaria every time I start the game.