Error: java.lang.NullPointerException: Cannot invoke "net.minecraft.class_2627.method_11317(net.minecraft.class_2487)" because "☃" is null

1.17.1 and it only happened when i went to a lower part of the build or if i moved fast

1.17.1 isn't officially supported on my part, if you insist on using 1.17.1 you can try and see if some of the older versions work for you, but unfortunately there won't be any fixes for that version.

What version is this on?

https://github.com/aleksilassila/litematica-printer#issues