Possible path to follow when fixing chunks.

[FabioSmuu]

I made the chunk changes from 1.16.5 to 1.17.1 and then I went straight to debugging.

In my analysis I noticed that when reentering the world, the sectionMask sometimes doesn't have toLongArray.

I did a StackTracer until I found the key and it was indeed in the rendering of the chunk.

The problem occurs when the player leaves and reenters the server (this will be worse if you force the server to shut down.)

So, yes, the problem is related to saving the world and in the chunk.

See my logs:

[OK][Smuu Log] typof sectionMask object
[OK][Smuu Log] typof skyLightMask object
[OK][Smuu Log] typof blockLightMask object
[Smuu Log] TypeError: this.sectionMask.toLongArray is not a function
    at ChunkColumn.getMask (ChunkColumn.js:244:31)
    at world.js:190:33
    at Entity.behavior (behavior.js:24:14)
    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
    at async player.login (login.js:223:9)
    at async Server.<anonymous> (login.js:29:7) TypeError: this.sectionMask.toLongArray is not a function
    at ChunkColumn.getMask (/home/fabio/Documentos/nodejs/minecraft-flying-squid/flying-squid/node_modules/prismarine-chunk/src/pc/1.17/ChunkColumn.js:244:31)
    at /home/fabio/Documentos/nodejs/minecraft-flying-squid/flying-squid/src/lib/plugins/world.js:190:33
    at Entity.behavior (/home/fabio/Documentos/nodejs/minecraft-flying-squid/flying-squid/src/lib/behavior.js:24:14)
    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
    at async player.login (/home/fabio/Documentos/nodejs/minecraft-flying-squid/flying-squid/src/lib/plugins/login.js:223:9)
    at async Server.<anonymous> (/home/fabio/Documentos/nodejs/minecraft-flying-squid/flying-squid/src/lib/plugins/login.js:29:7)
[Smuu Log] typof sectionMask number
[Smuu Log] typof skyLightMask number
[Smuu Log] typof blockLightMask object

What I did was just a try/catch after the StackTracer.

[rom1504]

Thanks fixed now