Happy to hear! Never need to apologize, and now you are a shining example of problem solving and grit!
I have tried everything (Firmata, browser, system updates) and couldn't get the Developer board to work. I plugged in the Classic board and it worked immediately.
I agree, direct us to the correct place. It took my class and me a bit of frustration and time to realize to open through the app and not a web browser.