Issue description:

CTD when clicking to bring up the shape card GUI in the Builder

Steps to reproduce:

Place Builder, insert Shape Card, click "?" to access GUI
Versions:
MC 1.15.2
Forge-1.15.2-31.1.74

mcjtylib-1-15-4-1-0-beta.jar
rftoolsbase-1.15-1.1.1-beta.jar
rftoolsbuilder-1.15-2.1.1-beta.jar
rftoolscontrol-1.15-3.0.2-beta.jar
rftoolspower-1-15-2-1-1-beta.jar
rftoolsstorage-1-15-1-1-2-beta.jar
rftoolsutility-1-15-2-1-2-beta.jar

Relevant logs, if any:
crash-2020-05-21_17.03.54-client.txt

Wrong issue tracker (go to https://github.com/McJtyMods/RFToolsBuilder/issues) and duplicate of
McJtyMods/RFToolsBuilder#18