When saving the tool path to disk, there is no indication of the progress or even a status saying that it is done.
I save directly to an SD card and many times I wait for a little while and then when I take it out, Simplify says that it has failed. Current workaround is to open Windows Explorer and looking at the "last modified" status of the files being written.
So I would suggest implementing a status bar/box in the next issue of Simplify.
