I ran another test. I created a food menu last night with two saves throughout, then closed the program. This morning I opened the program and the menu template and changed the font colour, nothing else. It would not save, nor would it "save as" a different file name. It appears that once the program is closed and re-opened, the template cannot be saved again. For example, if you own a restaurant and have a "daily feature" you cannot go into your master template and change the daily feature and save it. Or, if you have a price increase, you will not be able to change the pricing on your menu and save it. You have to create a whole new menu template from scratch.
This is really too bad as otherwise the program is very easy to use, but this one glitch alone is far too painful to consider purchasing multiple smart signage displays. If anyone has an alternative solution, or a recommended stand-alone software, I'm all ears.