19w09a/vanilla/snapshot (Server) Chunk errors

While running through the world, generating new chunks, generation errors, formerly known as chunk errors spawn in.

Seen in this twitch.tv clip: https://clips.twitch.tv/ChillySuspiciousAardvarkKlappa

The only way to fix them is to disconnect and reconnect. As you can see in the twitch clip, that even that method is not 100%. Note that there is lava/water before, but none after.