We need some help from Mac users.
There is a new V2 DMG package available at
https://sourceforge.net/projects/librecad/files/OSX/2.2/preRelease/The package LibreCAD-2.2.0-rc1-192-g24027e44.dmg was built from latest code on High Sierra (10.13.6).
It is in release candidate state and thus as stable as the latest 2.1.3. release and even more stable as the latest alpha package from 2016.
It would be great, if some Mac users can test this package and report about the macOS version and how it worked.
Many thanks for your support!