Plugin does not seem to be working with Sketch 61 and/or macOS Catalina

[steve-brown-mp]

The plugin doesn't launch or give any indication is Sketch that it is doing anything. There is a resulting error in the Plugin Log.log:
ReferenceError: Can't find variable: MochaJSDelegate
at inventory (/Users/sbrown/Library/Application Support/com.bohemiancoding.sketch3/Plugins/Symbol Instance Sheet.sketchplugin/Contents/Sketch/script.js:56:55)