Hi Mark,
I’m not sure exactly what would be wrong; you’d have to look at the logs in the History to see if there are any clues. In general, most people don’t delete the compiled .mcs files and restart Mach 4…that can cause the change to not do anything. Maybe try that first!
The saving issue…I’m not sure; maybe there is an issue with being able to write to the directory that it is saved at.
Corbin