@mitu All right, I'll try it and update. Thank you for your patience.
Edit : Looks like it works. Four reloads without a crash. Thank you so much!
Incidentally, I've found this on the github wiki :
'NAM however will run and continue to run everytime you start it up but it changes the eduke32.cfg file located in .etc/eduke32 on its own and breaks duke3d and all expansion packs till you manually modify eduke32.cfg selectedgrp field back to duke3d.grp. I've tried multiple times and nam breaks duke 3d and any expansion packs every single time. To avoid this change the permissions on the eduke3d.cfg file so no one can change it. And then you can run duke 3d the expansion packs and nam without anything breaking or having to modify anything after running nam.'
I am wondering if this is the same glitch?