This is challenging to say the least. I am beginning to understand what is going on a bit better. I did not realize you needed to save changes in the coding before running the Unity game start. I know, but I jump quickly between Unity and Visual Studio to see how it is working. Now, I Ctrl S before jumping over to run the game.
I did notice that some of the right click things you do in your Visual Studio on Mac do not show the same results as mine on Windows 10. So, that confuses me a bit too. (It really doesn’t take much to confuse me! 
I am enjoying your lectures. Thank you for all the work you put into them.