Hello Dfurlano,
Looks like it was worth it - nice.
![Smiley :)](https://www.machsupport.com/forum/Smileys/default/smiley.gif)
I used to have (maybe) similar problems. My advice is to bite the bullet and upgrade to Vn2.0.25 or 26. It really is very good and extremely stable. (Back up your mill.xml first and you may find your x and y motor settings need to be reversed for some reason.)
Your file loaded fine into this version on my PC with "inc" arc settings.
Good luck.