Compass 1.12.5 does not display any results on the Explain Plan tab when the Explain button is pressed. Instead, there is an error thrown in the DevTools console.
/Applications/MongoDB Compass.app/Contents/Resources/app.asar/node_modules/mongodb-core/lib/cursor.…:202 Uncaught TypeError: d3.layout.flextree is not a function
at Store.explainStoreUpdated (/Applications/MongoDB Compass.app/Contents/Resources/app.asar/src/internal-plugins/explain/lib/stor…:47)
at EventEmitter.eventHandler (/Applications/MongoDB Compass.app/Contents/Resources/app.asar/node_modules/reflux-core/lib/Publishe…:44)
at EventEmitter.emit (/Applications/MongoDB Compass.app/Contents/Resources/app.asar/node_modules/reflux-core/node_modules…:137)
at Store.trigger (/Applications/MongoDB Compass.app/Contents/Resources/app.asar/node_modules/reflux-core/lib/Publishe…:63)
at Store.setState (/Applications/MongoDB Compass.app/Contents/Resources/app.asar/node_modules/reflux-state-mixin/lib/s…:48)
at dataService.explain (/Applications/MongoDB Compass.app/Contents/Resources/app.asar/src/internal-plugins/explain/lib/stor…:186)
at _collection.find.explain (/Applications/MongoDB Compass.app/Contents/Resources/app.asar/node_modules/mongodb-data-service/lib…:556)
at executeCallback (/Applications/MongoDB Compass.app/Contents/Resources/app.asar/node_modules/mongodb/lib/utils.js:406)
at handleCallback (/Applications/MongoDB Compass.app/Contents/Resources/app.asar/node_modules/mongodb-core/lib/cursor.…:199)
at nextFunction (/Applications/MongoDB Compass.app/Contents/Resources/app.asar/node_modules/mongodb-core/lib/cursor.…:804)