Having problems with hidden lines of contents in AutoCAD Mechanical 2023

[dat_nguyen500]

I was using AutoCAD Mechanical 2023 and the hidden lines of contents in AutoCAD Mechanical didn't hide themselves. They appeared on the software and also the PDF file for printing. I used the command AMSHIDE but there were still some circles appeared in the drawing.

[pendean]

"hidden" linetypes are not for hiding from view/printing: perhaps that's the issue?

I'm also unsure what you are plotting to and with for settings, your posted file has nothing set