Unlike Mathcad that is not in lexicographic order, Mathcad is "user lexicograpic" ... Smath is in lexicographic [strictly]. This kind of solver may solve as well as freak.
I know, unfortunately I've totally missed this aspect when I've made the plugin (as can be seen in your worksheet, results are sorted a->z); I'm working to fix it.
If you like my plugins please consider to support the program buying a license; for personal contributions to me: paypal.me/dcprojects