So, I'll answer in three parts.
Part 1 - Videopad
Your software issue can only be summed as

What a bummer! I would never even look at such crooks again... GOOD RIDDANCE! 
Part 2 - DaVinci Resolve
Welcome to the dark side! We have cookies and champagne! I haven't encountered anything yet that the DaVinci free version can't do. Each time I upload a video, I spend 20 minutes searching for video manuals that explain exactly what I want, then three hours sifting through all the complicated stuff I don't want, and then another hour trying to follow the tutorial - watch, say "what?" rewind, squint my eyes, WHAT button did he push? swear, rinse repeat.
I'm so very excited that from now on, all I need to do is watch your videos and say "how did you do <insert neat trick>?" I can't wait to see the artist at work! (already seeing things in your FIRST video that took me months to learn it was even possible at all)
Part 3 - Lesson 10
Oh that was DELIGHTFUL! Chuck Berry, move over the new Rock & Roll King is in town!!! In fact, my husband (who positively hates rock) came in while I was watching, and he immediately said "That's delightful! Can you get the music for that???" So I told him I already do - all I need to do is reach that lesson 
Part 3b - Bonus
That was really fast!!!! EXCEPTIONALLY Fast!!! Let me refresh your memory: you only finished lesson 9 TWELVE DAYS ago. Twelve. In fact, I finished my lesson one day BEFORE you. Now, YOU uploaded an almost flawless, long, very relaxed and lovely lesson. And me? I just got a little comfortable with the left hand and added the first right hand lick THIS MORNING. The first of a total of eight, and then an ending. I will be with this lesson for at least another month.
I never want to hear you compare
and
ever again!