I've been researching this quite a bit and can't figure it out.  I've remapped all the taxiways and it still insists on me cutting across the grass??? Anyone have any ideas?  It seems to jump off on and random pin then connect to another across the airport then it sometimes back tracks to the active runway.  I've included a picture so you can see what i'm talking about.    You can see the two green pins next to my taxiway pins near the aircraft.  The path then jump across to the top of the runway ignoring all other taxiway routes.  It does this all over the airport.

https://1drv.ms/u/s!Asq5mIL5SH8ViJ0UoC3XBX7LLv1vmQ?e=e3GPDG

Make sure that the taxi paths all have proper names.  Paths without names are not used in calculating the taxi route.

Dave