Cannot read property 'length' of undefined crash for AdvancedMaps.js

[Asuraid]

Heya! As title says, it seems like there's something getting mucked up that it throws a 'Cannot read property 'length' of undefined' even on a completely fresh version of a project. Here's the devkit info if it helps to trace the issue down; although I know some coding, it flies well over my head. 🤣