How to reproduce:

Get elytra wings and wear them.

Wait for rain to happen (or just activate it using commands)

Use a trident with any riptide enchantment on it.

Fly towards the sky using the elytra wings while throwing the trident multiple times.

You'll get to a height when the game kicks you from the world in single player with the following message:

Connection Lost
Invalid move player packet received

Back to server list

And this all happens with singleplayer worlds, and when clicking the "Back to server list" button, it takes you to your saved servers list.