Fix 1.17.30 chunks

[hrmorley34]

Closes #87

I have not looked into the experimental features, so I don't know how those are affected or if those work.

[dopazz]

Did you recompile and test this? Can you send me a build with this change so I can test it with my own worlds?

Edit: I thought I would need complete Visual Studio to build this myself, but it was nowhere near that complicated. I downloaded the .NET Core 3.1 SDK and the code in this repository and used the instructions to build it myself.

https://github.com/papyrus-mc/papyruscs#building

The only code I changed was World.cs, I copied the changes into it. The output no longer has the holes in the map:

[evilzenscientist]

I compiled this branch - and it solved the problem for me. I now have good maps again. Thanks!

[jmartin657]

even with the newest version and everything up to date

would it be possible to make another "pre-built library" for the new version? to rule out me just being a noob at compiling it... but im pretty sure I did it right