Prerequisites

• I am running the latest alpha version of MineColonies for my Minecraft version.
• I checked the MineColonies Wiki and made sure that my issue is not covered there.
• I made sure that this issue is not a duplicate of any existing issue.
• This is an issue and not a feature request. Please create all feature requests here.

Context

• Minecraft Version: 1.15.2
• MineColonies Version: minecolonies-0.13.81-RELEASE-universal.jar
  structurize-0.13.31-RELEASE.jar
• Related Mods and Their Versions: forge 31.2.31
  SnowRealMagic-1.15.2-1.8.0.jar

Expected behavior

The schematic tool showing the preview, and not crashing?

Actual behaviour

If an exported schematic contains the blocks modified by Snow! Real Magic, attempting to view it in the Building tool will crash to desktop.

Steps to reproduce the issue

To reproduce this easily, make it snow on some grass and save the Snowy grass in a schematic. Then try to view the schematic in the building tool. I suspect other blocks like Snowy slab and Snowy fence are affected too.

Logs

crash log:
https://gist.github.com/loudwhitenoise/301f5a98f974eeb3eb16fb73d0d1da62
latest.log:
https://gist.github.com/loudwhitenoise/f598067f53ec34521cd61f4ece7fa795

@loudwhitenoise 1.16 should be fixed soon, for further help please follow Snownee/SnowRealMagic#82