A tool that converts .obj files into Game Maker Studio 2 Text · By Sir.TotallyAverage
here's the error message;
https://hastebin.com/eluqemamem.sql
Hmmm... I'll look into it tonight when I have a chance. Magica probably exports to the .obj format differently.
Looks like it was throwing an error on lines with no text due to the way a Substring loop was running. I uploaded a v1.02 with a catch that should fix the problem.