Before the latest version of the VTT (used to be called Jumpgate), all the line shapes you drew were actually a type of object called a path , by the API Mod script system. The new VTT ushered in a lot of cool new toys, but for some reasons, the person who re-factored paths decided to invert the coordinate system (y0 is at bottom left instead of top left): pathv2 . This might have been to make development easier, I honestly can only speculate. This means that any scripts that deal with paths and knowing where they are has to perform a mathematical transformation if they are going to support both path and pathv2 . It is intensely frustrating for maintaining continuity of scripts, but it is the way it is now. You can now only draw pathv2 objects. You could run an old legacy game if you have one to copy (you can't create them from scratch anymore). You would gain a few advantages like KABOOM compatibility, but lose the huge collection of new features available on the modern VTT.