Ok, that one you have attached is a lathe screenset, the one you had in the profile was a mill screenset. The difference is in the file extension, .lset as opposed to .set.
If you open a profile with a .set then Mach will think it is a mill and treat it as such, same if you open a profile that has a .lset loaded, Mach will see it as a lathe .
If you try and load a mill type code into a lathe screenset then likely it will not show as the plane is different, and same with the other way around.
Having said that your code seems to be in the XY plane and you did have a .set loaded, so not sure why it did not show, unless the profile originally had a .lset you had just loaded the .set screenset and not restarted Mach, that way Mach would still think it a lathe profile.
Hood