Hello, I am sorry to hear that, I am struggling to understand how you can get "burned" downloading free software direct from the Microsoft web site?
Download a "free" version and ignore the fine print that says that you will have to pay for this "advanced" "free" version later on. Start to develop with said "free" version and figure out later to either
- pay
or - rework part of your stuff to work around the pay part.
With other words it is not free. Not like in "beer" and not like in "speech". More like in "drugs".
It's very good to hear that seeing a graphical diagram can also be used to identify coding mistakes. In terms of understanding, it's just an example, maybe my 2nd example in this post is more relevent for experienced users.
The coding mistakes where obvious from the code as well. Just not so graphic 