Environment:
CS 2025 (InDesign 20.0.1, Illustrator 29.1)
Mac Studio (M2 Ultra, 192gb, Sonoma 14.7.1)

We receive dielines as .dxf files from engineering. We open these files in Illustrator and create a layered file (dieline and art), export the individual layers as dieline and art, then impose the project using InDesign. Some dielines are changing from a stroke to a filled shape (think Minus Front) once the .pdf file is written from InDesign. (line verified as line in Illustrator in both the Illustrator document and the pdf generated of the dieline to use for imposition. InDesign generated (imposed) pdf file is different from the files used to create the pdf. Attempted to resolve problem by placing Illustrator file and using "Object Layer Options" to control desired art. No effect.

Occurs mostly on interior cuts, not perimeter cuts.

Thoughts?

Thanks for looking this over.